Fix typos in error and option messages in OPCODES library.

	PR 21739
opcodes	* arc-opc.c (insert_rhv2): Use lower case first letter in error
	message.
	(insert_r0): Likewise.
	(insert_r1): Likewise.
	(insert_r2): Likewise.
	(insert_r3): Likewise.
	(insert_sp): Likewise.
	(insert_gp): Likewise.
	(insert_pcl): Likewise.
	(insert_blink): Likewise.
	(insert_ilink1): Likewise.
	(insert_ilink2): Likewise.
	(insert_ras): Likewise.
	(insert_rbs): Likewise.
	(insert_rcs): Likewise.
	(insert_simm3s): Likewise.
	(insert_rrange): Likewise.
	(insert_r13el): Likewise.
	(insert_fpel): Likewise.
	(insert_blinkel): Likewise.
	(insert_pclel): Likewise.
	(insert_nps_bitop_size_2b): Likewise.
	(insert_nps_imm_offset): Likewise.
	(insert_nps_imm_entry): Likewise.
	(insert_nps_size_16bit): Likewise.
	(insert_nps_##NAME##_pos): Likewise.
	(insert_nps_##NAME): Likewise.
	(insert_nps_bitop_ins_ext): Likewise.
	(insert_nps_##NAME): Likewise.
	(insert_nps_min_hofs): Likewise.
	(insert_nps_##NAME): Likewise.
	(insert_nps_rbdouble_64): Likewise.
	(insert_nps_misc_imm_offset): Likewise.
	* riscv-dis.c (print_riscv_disassembler_options): Fix typo in
	option description.

gas	* testsuite/gas/arc/add_s-err.s: Update expected error message.

5 files changed, 81 insertions, 37 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index f8fc64f9fd7..30d349b33e6 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2017-07-25  Nick Clifton  <nickc@redhat.com>
+
+	PR 21739
+	* testsuite/gas/arc/add_s-err.s: Update expected error message.
+
 2017-07-24  Nick Clifton  <nickc@redhat.com>
 
 	PR 21809
diff --git a/gas/testsuite/gas/arc/add_s-err.s b/gas/testsuite/gas/arc/add_s-err.s
index 024bc437994..95fcf64996d 100644
--- a/gas/testsuite/gas/arc/add_s-err.s
+++ b/gas/testsuite/gas/arc/add_s-err.s
@@ -4,7 +4,7 @@
 ; { dg-do assemble { target arc*-*-* } }
 ; { dg-options "--mcpu=arc700" }
         ;; The following insns are accepted by ARCv2 only
-        add_s r4,r4,-1          ; { dg-error "Error: Register must be either r0-r3 or r12-r15 for instruction." }
+        add_s r4,r4,-1          ; { dg-error "Error: register must be either r0-r3 or r12-r15 for instruction" }
         add_s 0,0xAAAA5555,-1   ; { dg-error "Error: inappropriate arguments for opcode 'add_s'" }
         add_s r0,r15,0x20       ; { dg-error "Error: inappropriate arguments for opcode 'add_s'" }
         add_s r1,r15,0x20       ; { dg-error "Error: inappropriate arguments for opcode 'add_s'" }
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index ef026af4596..59ff038f482 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,42 @@
+2017-07-25  Nick Clifton  <nickc@redhat.com>
+
+	PR 21739
+	* arc-opc.c (insert_rhv2): Use lower case first letter in error
+	message.
+	(insert_r0): Likewise.
+	(insert_r1): Likewise.
+	(insert_r2): Likewise.
+	(insert_r3): Likewise.
+	(insert_sp): Likewise.
+	(insert_gp): Likewise.
+	(insert_pcl): Likewise.
+	(insert_blink): Likewise.
+	(insert_ilink1): Likewise.
+	(insert_ilink2): Likewise.
+	(insert_ras): Likewise.
+	(insert_rbs): Likewise.
+	(insert_rcs): Likewise.
+	(insert_simm3s): Likewise.
+	(insert_rrange): Likewise.
+	(insert_r13el): Likewise.
+	(insert_fpel): Likewise.
+	(insert_blinkel): Likewise.
+	(insert_pclel): Likewise.
+	(insert_nps_bitop_size_2b): Likewise.
+	(insert_nps_imm_offset): Likewise.
+	(insert_nps_imm_entry): Likewise.
+	(insert_nps_size_16bit): Likewise.
+	(insert_nps_##NAME##_pos): Likewise.
+	(insert_nps_##NAME): Likewise.
+	(insert_nps_bitop_ins_ext): Likewise.
+	(insert_nps_##NAME): Likewise.
+	(insert_nps_min_hofs): Likewise.
+	(insert_nps_##NAME): Likewise.
+	(insert_nps_rbdouble_64): Likewise.
+	(insert_nps_misc_imm_offset): Likewise.
+	* riscv-dis.c (print_riscv_disassembler_options): Fix typo in
+	option description.
+
 2017-07-24  Laurent Desnogues  <laurent.desnogues@arm.com>
 	    Jiong Wang  <jiong.wang@arm.com>
 
diff --git a/opcodes/arc-opc.c b/opcodes/arc-opc.c
index f39704d3843..e57877e1c98 100644
--- a/opcodes/arc-opc.c
+++ b/opcodes/arc-opc.c
@@ -170,7 +170,7 @@ insert_rhv2 (unsigned long long  insn,
 	     const char **       errmsg)
 {
   if (value == 0x1E)
-    *errmsg = _("Register R30 is a limm indicator");
+    *errmsg = _("register R30 is a limm indicator");
   return insn |= ((value & 0x07) << 5) | ((value >> 3) & 0x03);
 }
 
@@ -189,7 +189,7 @@ insert_r0 (unsigned long long  insn,
 	   const char **       errmsg)
 {
   if (value != 0)
-    *errmsg = _("Register must be R0");
+    *errmsg = _("register must be R0");
   return insn;
 }
 
@@ -207,7 +207,7 @@ insert_r1 (unsigned long long  insn,
 	   const char **       errmsg)
 {
   if (value != 1)
-    *errmsg = _("Register must be R1");
+    *errmsg = _("register must be R1");
   return insn;
 }
 
@@ -224,7 +224,7 @@ insert_r2 (unsigned long long  insn,
 	   const char **       errmsg)
 {
   if (value != 2)
-    *errmsg = _("Register must be R2");
+    *errmsg = _("register must be R2");
   return insn;
 }
 
@@ -241,7 +241,7 @@ insert_r3 (unsigned long long  insn,
 	   const char **       errmsg)
 {
   if (value != 3)
-    *errmsg = _("Register must be R3");
+    *errmsg = _("register must be R3");
   return insn;
 }
 
@@ -258,7 +258,7 @@ insert_sp (unsigned long long  insn,
 	   const char **       errmsg)
 {
   if (value != 28)
-    *errmsg = _("Register must be SP");
+    *errmsg = _("register must be SP");
   return insn;
 }
 
@@ -275,7 +275,7 @@ insert_gp (unsigned long long  insn,
 	   const char **       errmsg)
 {
   if (value != 26)
-    *errmsg = _("Register must be GP");
+    *errmsg = _("register must be GP");
   return insn;
 }
 
@@ -292,7 +292,7 @@ insert_pcl (unsigned long long  insn,
 	    const char **       errmsg)
 {
   if (value != 63)
-    *errmsg = _("Register must be PCL");
+    *errmsg = _("register must be PCL");
   return insn;
 }
 
@@ -309,7 +309,7 @@ insert_blink (unsigned long long  insn,
 	      const char **       errmsg)
 {
   if (value != 31)
-    *errmsg = _("Register must be BLINK");
+    *errmsg = _("register must be BLINK");
   return insn;
 }
 
@@ -326,7 +326,7 @@ insert_ilink1 (unsigned long long  insn,
 	       const char **       errmsg)
 {
   if (value != 29)
-    *errmsg = _("Register must be ILINK1");
+    *errmsg = _("register must be ILINK1");
   return insn;
 }
 
@@ -343,7 +343,7 @@ insert_ilink2 (unsigned long long  insn,
 	       const char **       errmsg)
 {
   if (value != 30)
-    *errmsg = _("Register must be ILINK2");
+    *errmsg = _("register must be ILINK2");
   return insn;
 }
 
@@ -374,7 +374,7 @@ insert_ras (unsigned long long  insn,
       insn |= (value - 8);
       break;
     default:
-      *errmsg = _("Register must be either r0-r3 or r12-r15");
+      *errmsg = _("register must be either r0-r3 or r12-r15");
       break;
     }
   return insn;
@@ -412,7 +412,7 @@ insert_rbs (unsigned long long  insn,
       insn |= ((value - 8)) << 8;
       break;
     default:
-      *errmsg = _("Register must be either r0-r3 or r12-r15");
+      *errmsg = _("register must be either r0-r3 or r12-r15");
       break;
     }
   return insn;
@@ -450,7 +450,7 @@ insert_rcs (unsigned long long  insn,
       insn |= ((value - 8)) << 5;
       break;
     default:
-      *errmsg = _("Register must be either r0-r3 or r12-r15");
+      *errmsg = _("register must be either r0-r3 or r12-r15");
       break;
     }
   return insn;
@@ -501,7 +501,7 @@ insert_simm3s (unsigned long long  insn,
       tmp = 0x06;
       break;
     default:
-      *errmsg = _("Accepted values are from -1 to 6");
+      *errmsg = _("accepted values are from -1 to 6");
       break;
     }
 
@@ -530,9 +530,9 @@ insert_rrange (unsigned long long  insn,
   int reg2 = value & 0xFFFF;
 
   if (reg1 != 13)
-    *errmsg = _("First register of the range should be r13");
+    *errmsg = _("first register of the range should be r13");
   else if (reg2 < 13 || reg2 > 26)
-    *errmsg = _("Last register of the range doesn't fit");
+    *errmsg = _("last register of the range doesn't fit");
   else
     insn |= ((reg2 - 12) & 0x0F) << 1;
   return insn;
@@ -552,7 +552,7 @@ insert_r13el (unsigned long long insn,
 {
   if (value != 13)
     {
-      *errmsg = _("Invalid register number, should be fp");
+      *errmsg = _("invalid register number, should be fp");
       return insn;
     }
 
@@ -567,7 +567,7 @@ insert_fpel (unsigned long long  insn,
 {
   if (value != 27)
     {
-      *errmsg = _("Invalid register number, should be fp");
+      *errmsg = _("invalid register number, should be fp");
       return insn;
     }
 
@@ -589,7 +589,7 @@ insert_blinkel (unsigned long long  insn,
 {
   if (value != 31)
     {
-      *errmsg = _("Invalid register number, should be blink");
+      *errmsg = _("invalid register number, should be blink");
       return insn;
     }
 
@@ -611,7 +611,7 @@ insert_pclel (unsigned long long  insn,
 {
   if (value != 63)
     {
-      *errmsg = _("Invalid register number, should be pcl");
+      *errmsg = _("invalid register number, should be pcl");
       return insn;
     }
 
@@ -715,7 +715,7 @@ insert_nps_3bit_reg_at_##OFFSET##_##NAME		         \
       insn |= (value - 8) << (OFFSET);                           \
       break;                                                     \
     default:                                                     \
-      *errmsg = _("Register must be either r0-r3 or r12-r15");   \
+      *errmsg = _("register must be either r0-r3 or r12-r15");   \
       break;                                                     \
     }                                                            \
   return insn;                                                   \
@@ -763,7 +763,7 @@ insert_nps_bitop_size_2b (unsigned long long  insn,
       break;
     default:
       value = 0;
-      *errmsg = _("Invalid size, should be 1, 2, 4, or 8");
+      *errmsg = _("invalid size, should be 1, 2, 4, or 8");
       break;
     }
 
@@ -874,7 +874,7 @@ insert_nps_imm_offset (unsigned long long  insn,
       value = value >> 4;
       break;
     default:
-      *errmsg = _("Invalid position, should be 0, 16, 32, 48 or 64.");
+      *errmsg = _("invalid position, should be 0, 16, 32, 48 or 64.");
       value = 0;
     }
   insn |= (value << 10);
@@ -908,7 +908,7 @@ insert_nps_imm_entry (unsigned long long  insn,
     value = 3;
     break;
     default:
-      *errmsg = _("Invalid position, should be 16, 32, 64 or 128.");
+      *errmsg = _("invalid position, should be 16, 32, 64 or 128.");
       value = 0;
     }
   insn |= (value << 2);
@@ -930,7 +930,7 @@ insert_nps_size_16bit (unsigned long long  insn,
 {
   if ((value < 1) || (value > 64))
     {
-      *errmsg = _("Invalid size value must be on range 1-64.");
+      *errmsg = _("invalid size value must be on range 1-64.");
       value = 0;
     }
   value = value & 0x3f;
@@ -961,7 +961,7 @@ insert_nps_##NAME##_pos (unsigned long long  insn,	      \
      value = value / 8;                                       \
      break;                                                   \
    default:                                                   \
-     *errmsg = _("Invalid position, should be 0, 8, 16, or 24");       \
+     *errmsg = _("invalid position, should be 0, 8, 16, or 24");       \
      value = 0;                                               \
   }                                                           \
   insn |= (value << SHIFT);                                   \
@@ -986,7 +986,7 @@ insert_nps_##NAME (unsigned long long  insn,				\
   {                                                                     \
     if (value < LOWER || value > UPPER)                                 \
       {                                                                 \
-        *errmsg = _("Invalid size, value must be "                      \
+        *errmsg = _("invalid size, value must be "                      \
                     #LOWER " to " #UPPER ".");                          \
         return insn;                                                    \
       }                                                                 \
@@ -1122,7 +1122,7 @@ insert_nps_bitop_ins_ext (unsigned long long  insn,
                           const char **       errmsg)
 {
   if (value < 0 || value > 28)
-    *errmsg = _("Value must be in the range 0 to 28");
+    *errmsg = _("value must be in the range 0 to 28");
   return insn | (value << 20);
 }
 
@@ -1144,7 +1144,7 @@ insert_nps_##NAME (unsigned long long  insn,				\
 		   const char **       errmsg)				\
 {                                                                       \
   if (value < 1 || value > UPPER)                                       \
-    *errmsg = _("Value must be in the range 1 to " #UPPER);             \
+    *errmsg = _("value must be in the range 1 to " #UPPER);             \
   if (value == UPPER)                                                   \
     value = 0;                                                          \
   return insn | (value << SHIFT);                                       \
@@ -1174,9 +1174,9 @@ insert_nps_min_hofs (unsigned long long  insn,
                      const char **       errmsg)
 {
   if (value < 0 || value > 240)
-    *errmsg = _("Value must be in the range 0 to 240");
+    *errmsg = _("value must be in the range 0 to 240");
   if ((value % 16) != 0)
-    *errmsg = _("Value must be a multiple of 16");
+    *errmsg = _("value must be a multiple of 16");
   value = value / 16;
   return insn | (value << 6);
 }
@@ -1196,7 +1196,7 @@ insert_nps_##NAME (unsigned long long  insn,			       \
                    const char **       errmsg)			       \
 {                                                                      \
   if (value != ARC_NPS400_ADDRTYPE_##VALUE)                            \
-    *errmsg = _("Invalid address type for operand");                   \
+    *errmsg = _("invalid address type for operand");                   \
   return insn;                                                         \
 }                                                                      \
                                                                        \
@@ -1230,7 +1230,7 @@ insert_nps_rbdouble_64 (unsigned long long  insn,
                         const char **       errmsg)
 {
   if (value < 0 || value > 31)
-    *errmsg = _("Value must be in the range 0 to 31");
+    *errmsg = _("value must be in the range 0 to 31");
   return insn | (value << 43) | (value << 48);
 }
 
@@ -1255,7 +1255,7 @@ insert_nps_misc_imm_offset (unsigned long long  insn,
 {
   if (value & 0x3)
     {
-      *errmsg = _("Invalid position, should be 0,4, 8,...124.");
+      *errmsg = _("invalid position, should be one of: 0,4,8,...124.");
       value = 0;
     }
   insn |= (value << 6);
diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c
index 2dc76dead89..17d042afb5b 100644
--- a/opcodes/riscv-dis.c
+++ b/opcodes/riscv-dis.c
@@ -498,7 +498,7 @@ The following RISC-V-specific disassembler options are supported for use\n\
 with the -M switch (multiple options should be separated by commas):\n"));
 
   fprintf (stream, _("\n\
-  numeric       Print numeric reigster names, rather than ABI names.\n"));
+  numeric       Print numeric register names, rather than ABI names.\n"));
 
   fprintf (stream, _("\n\
   no-aliases    Disassemble only into canonical instructions, rather\n\