3 files changed, 3 insertions, 3 deletions
diff --git a/lisp/progmodes/cc-mode.el b/lisp/progmodes/cc-mode.el
index 76f5de212f2..631787d73f1 100644
--- a/lisp/progmodes/cc-mode.el
+++ b/lisp/progmodes/cc-mode.el
@@ -1966,7 +1966,7 @@ Note that this is a strict tail, so won't match, e.g. \"0x....\".")
   ;; these caches from inside them, and we must thus be sure that this
   ;; has already been executed.
   ;;
-  ;; This calls the language variable c-before-font-lock-functions, if non nil.
+  ;; This calls the language variable c-before-font-lock-functions, if non-nil.
   ;; This typically sets `syntax-table' properties.
 
   ;; We can sometimes get two consecutive calls to `after-change-functions'
diff --git a/lisp/progmodes/etags.el b/lisp/progmodes/etags.el
index 78f27295f0c..a0351610008 100644
--- a/lisp/progmodes/etags.el
+++ b/lisp/progmodes/etags.el
@@ -1313,7 +1313,7 @@ buffer-local values of tags table format variables."
       ;; Find the end of the tag and record the whole tag text.
       (search-forward "\177")
       (setq tag-text (buffer-substring (1- (point)) (point-at-bol)))
-      ;; If use-explicit is non nil and explicit tag is present, use it as part of
+      ;; If use-explicit is non-nil and explicit tag is present, use it as part of
       ;; return value. Else just skip it.
       (setq explicit-start (point))
       (when (and (search-forward "\001" (point-at-bol 2) t)
diff --git a/lisp/progmodes/verilog-mode.el b/lisp/progmodes/verilog-mode.el
index 2939108d47b..293d0b2450b 100644
--- a/lisp/progmodes/verilog-mode.el
+++ b/lisp/progmodes/verilog-mode.el
@@ -626,7 +626,7 @@ If nil, indent as:
 	input [31:0] a;
 	input        \\=`CP;
 	output       c;
-If non nil, treat as:
+If non-nil, treat as:
 	input [31:0] a;
 	input \\=`CP    ;
 	output       c;"