gst/gstvalue.c: Allow NULL-strings as argument (#165365).

Original commit message from CVS:
Reviewed by:  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
* gst/gstvalue.c: (gst_string_wrap):
Allow NULL-strings as argument (#165365).

ChangeLog

+2005-01-28  Edward Hervey  <bilboed@bilboed.com>
+
+	Reviewed by:  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
+
+	* gst/gstvalue.c: (gst_string_wrap):
+	  Allow NULL-strings as argument (#165365).
+
 2005-01-27  Stephane Wirtel  <stephane.wirtel@belgacom.net>
 
 	Reviewed by:  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>

gst/gstvalue.c

@@ -1241,6 +1241,8 @@ gst_string_wrap (const char *s)
 
   len = 0;
   t = s;
+  if (!s)
+    return g_strdup ("");
   while (*t) {
     if (GST_ASCII_IS_STRING (*t)) {
       len++;