gnulib: bring up-to-date with current git head of gnulib.

This fixes Savannah bug #46715 ("testsuite error with perl 5.22,
gnulib outdated").
* doc/regexprops.texi: Regenerate this file from gnulib's changed
regular expression dialect definitions regex.h.  The effect is for
regex types egrep and posix-egrep to become synonyms.
* NEWS: Mention this change.

3 files changed, 16 insertions, 62 deletions

diff --git a/NEWS b/NEWS
index 1b682344..7d7697ef 100644
--- a/NEWS
+++ b/NEWS
@@ -2,11 +2,19 @@ GNU findutils NEWS - User visible changes.      -*- outline -*- (allout)
 
 * Major changes in release 4.5.16-git, 2015-12-DD
 
-** Translations
+** Functional Changes to find
+Using -regextype egrep now has the same effect -regextype
+posix-egrep.  This is the result of a change to gnulib to bring it
+into line with GNU grep (see
+http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20974#22).
 
+** Translations
 Updated translations: Estonian, Swedish, Polish, Vietnamese, Ukranian,
 Norwegian Bokmaal, Czech, Russian, French, Hungarian.
 
+** Bug Fixes:
+#46715: testsuite error with perl 5.22, gnulib outdated
+
 * Major changes in release 4.5.15, 2015-12-18
 
 ** Bug Fixes
diff --git a/doc/regexprops.texi b/doc/regexprops.texi
index f49c3266..719a649f 100644
--- a/doc/regexprops.texi
+++ b/doc/regexprops.texi
@@ -165,7 +165,7 @@ The longest possible match is returned; this applies to the regular expression a
 @subsection @samp{egrep} regular expression syntax
 
 
-The character @samp{.} matches any single character except newline.
+The character @samp{.} matches any single character.
 
 
 @table @samp
@@ -181,7 +181,7 @@ matches a @samp{?}.
 @end table
 
 
-Bracket expressions are used to match ranges of characters.  Bracket expressions where the range is backward, for example @samp{[z-a]}, are ignored.  Within square brackets, @samp{\} is taken literally.  Character classes are supported; for example @samp{[[:digit:]]} will match a single decimal digit.  Non-matching lists @samp{[^@dots{}]} do not ever match newline.
+Bracket expressions are used to match ranges of characters.  Bracket expressions where the range is backward, for example @samp{[z-a]}, are invalid.  Within square brackets, @samp{\} is taken literally.  Character classes are supported; for example @samp{[[:digit:]]} will match a single decimal digit.
 
 GNU extensions are supported:
 @enumerate
@@ -205,7 +205,7 @@ GNU extensions are supported:
 @end enumerate
 
 
-Grouping is performed with parentheses @samp{()}.  A backslash followed by a digit acts as a back-reference and matches the same thing as the previous grouped expression indicated by that number.  For example @samp{\2} matches the second group expression.  The order of group expressions is determined by the position of their opening parenthesis @samp{(}.
+Grouping is performed with parentheses @samp{()}.  An unmatched @samp{)} matches just itself.  A backslash followed by a digit acts as a back-reference and matches the same thing as the previous grouped expression indicated by that number.  For example @samp{\2} matches the second group expression.  The order of group expressions is determined by the position of their opening parenthesis @samp{(}.
 
 The alternation operator is @samp{|}.
 
@@ -213,7 +213,7 @@ The characters @samp{^} and @samp{$} always represent the beginning and end of a
 
 The characters @samp{*}, @samp{+} and @samp{?} are special anywhere in a regular expression.
 
-
+Intervals are specified by @samp{@{} and @samp{@}}.  Invalid intervals are treated as literals, for example @samp{a@{1} is treated as @samp{a\@{1}
 
 The longest possible match is returned; this applies to the regular expression as a whole and (subject to this constraint) to subexpressions within groups.
 
@@ -380,7 +380,7 @@ The longest possible match is returned; this applies to the regular expression a
 @subsection @samp{grep} regular expression syntax
 
 
-The character @samp{.} matches any single character except newline.
+The character @samp{.} matches any single character.
 
 
 @table @samp
@@ -394,7 +394,7 @@ match themselves.
 @end table
 
 
-Bracket expressions are used to match ranges of characters.  Bracket expressions where the range is backward, for example @samp{[z-a]}, are ignored.  Within square brackets, @samp{\} is taken literally.  Character classes are supported; for example @samp{[[:digit:]]} will match a single decimal digit.  Non-matching lists @samp{[^@dots{}]} do not ever match newline.
+Bracket expressions are used to match ranges of characters.  Bracket expressions where the range is backward, for example @samp{[z-a]}, are invalid.  Within square brackets, @samp{\} is taken literally.  Character classes are supported; for example @samp{[[:digit:]]} will match a single decimal digit.
 
 GNU extensions are supported:
 @enumerate
@@ -523,61 +523,7 @@ The longest possible match is returned; this applies to the regular expression a
 This is a synonym for ed.
 @node posix-egrep regular expression syntax
 @subsection @samp{posix-egrep} regular expression syntax
-
-
-The character @samp{.} matches any single character except newline.
-
-
-@table @samp
-
-@item +
-indicates that the regular expression should match one or more occurrences of the previous atom or regexp.
-@item ?
-indicates that the regular expression should match zero or one occurrence of the previous atom or regexp.
-@item \+
-matches a @samp{+}
-@item \?
-matches a @samp{?}.
-@end table
-
-
-Bracket expressions are used to match ranges of characters.  Bracket expressions where the range is backward, for example @samp{[z-a]}, are ignored.  Within square brackets, @samp{\} is taken literally.  Character classes are supported; for example @samp{[[:digit:]]} will match a single decimal digit.  Non-matching lists @samp{[^@dots{}]} do not ever match newline.
-
-GNU extensions are supported:
-@enumerate
-
-@item @samp{\w} matches a character within a word
-
-@item @samp{\W} matches a character which is not within a word
-
-@item @samp{\<} matches the beginning of a word
-
-@item @samp{\>} matches the end of a word
-
-@item @samp{\b} matches a word boundary
-
-@item @samp{\B} matches characters which are not a word boundary
-
-@item @samp{\`} matches the beginning of the whole input
-
-@item @samp{\'} matches the end of the whole input
-
-@end enumerate
-
-
-Grouping is performed with parentheses @samp{()}.  A backslash followed by a digit acts as a back-reference and matches the same thing as the previous grouped expression indicated by that number.  For example @samp{\2} matches the second group expression.  The order of group expressions is determined by the position of their opening parenthesis @samp{(}.
-
-The alternation operator is @samp{|}.
-
-The characters @samp{^} and @samp{$} always represent the beginning and end of a string respectively, except within square brackets.  Within brackets, @samp{^} can be used to invert the membership of the character class being specified.
-
-The characters @samp{*}, @samp{+} and @samp{?} are special anywhere in a regular expression.
-
-Intervals are specified by @samp{@{} and @samp{@}}.  Invalid intervals are treated as literals, for example @samp{a@{1} is treated as @samp{a\@{1}
-
-The longest possible match is returned; this applies to the regular expression as a whole and (subject to this constraint) to subexpressions within groups.
-
-
+This is a synonym for egrep.
 @node posix-extended regular expression syntax
 @subsection @samp{posix-extended} regular expression syntax
 
diff --git a/gnulib b/gnulib
-Subproject 94ee038129c3b40510ef0ff6ac6ddfe85bf0f97
+Subproject c97b8b9030de7c9a9f9f6d7dcdc3505c6b3f7f9