Merged revisions 302414 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

........
  r302414 | seanbright | 2011-01-19 10:45:17 -0500 (Wed, 19 Jan 2011) | 7 lines
  
  Initialize an uninitialized variable.
  
  (closes issue #18640)
  Reported by: jcovert
  Patches:
        chan_sip.c.patch uploaded by jcovert (license 551)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@302415 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -13131,7 +13131,7 @@ static enum parse_register_result parse_register_contact(struct sip_pvt *pvt, st
 	char *firstcuri = NULL;
 	int start = 0;
 	int wildcard_found = 0;
-	int single_binding_found;
+	int single_binding_found = 0;
 
 	ast_copy_string(contact, __get_header(req, "Contact", &start), sizeof(contact));