(search-whitespace-regexp): Doc fix.

diff --git a/lisp/isearch.el b/lisp/isearch.el
index 1753dfcd8ff7a84069f799d6eab3426b1c548682..03e67f37832445a4de9b3ff810e78dfb5e113461 100644 (file)
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -153,7 +153,9 @@ string, and RET terminates editing and does a nonincremental search."
 (defcustom search-whitespace-regexp "\\s-+"
   "*If non-nil, regular expression to match a sequence of whitespace chars.
 This applies to regular expression incremental search.
-You might want to use something like \"[ \\t\\r\\n]+\" instead."
+You might want to use something like \"[ \\t\\r\\n]+\" instead.
+In the Customization buffer, that is `[' followed by a space,
+a tab, a carriage return (control-M), a newline, and `]+'."
   :type 'regexp
   :group 'isearch)