--- a/ChangeLog
+++ b/ChangeLog
@@ -3,8 +3,8 @@
         * lib/regex.h: Fix a mention of `regex_compile' (should be
         `re_compile_pattern').
         Correct and clarify documentation for RE_CONTEXT_INVALID_DUP.
-        (re_set_registers): Correct name of parameter in comment.         
-        
+        (re_set_registers): Correct name of parameter in comment.
+
         * doc/regex.texi: Add documentation for missing syntax flags.
         Remove commented-out documentation of defunct syntax option
           RE_NO_EMPTY_ALTS.
@@ -13,7 +13,7 @@
         Document trick to re-use a pattern buffer by setting fastmap manually.
         Update documentation of struct re_pattern_buffer per public members.
         Uncomment documentation of equivalence class operators and
-          collating symbol operators, since they are now implemented, 
+          collating symbol operators, since they are now implemented,
         Explain leftmost-longest matching in relation to alternatives.
         Tidy documentation of substring matching.
         Remove POSIX documentation, which is done better in

--- a/doc/regex.texi
+++ b/doc/regex.texi
@@ -882,7 +882,7 @@
 @node Collating Symbol Operators
 @subsection Collating Symbol Operators (@code{[.} @dots{} @code{.]})
 
-Collating symbols can be represented inside lists. 
+Collating symbols can be represented inside lists.
 You form a @dfn{collating symbol} by
 putting a collating element between an @dfn{open-collating-symbol
 operator} and an @dfn{close-collating-symbol operator}.  @samp{[.}