(Predicates for Strings): Minor clarification.

doc/lispref/ChangeLog

+2009-01-05  Richard M Stallman  <rms@gnu.org>
+
+	* strings.texi (Predicates for Strings): Minor clarification.
+
+	* functions.texi (Function Safety): Texinfo usage fix.
+
 2009-01-04  Eduard Wiebe  <usenet@pusto.de>  (tiny patch)
 
 	* objects.texi (General Escape Syntax): Fix typo.

doc/lispref/strings.texi

@@ -102,7 +102,7 @@ otherwise.
 
 @defun string-or-null-p object
 This function returns @code{t} if @var{object} is a string or
-@code{nil}, @code{nil} otherwise.
+@code{nil}.  It returns @code{nil} otherwise.
 @end defun
 
 @defun char-or-string-p object