The logic of a strncasecmp call was reversed.

(closes issue #13706)
Reported by: andrew53
Patches:
      sip_notify_from_rfc3265.patch uploaded by andrew53 (license 519)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@151512 65c4cc65-6c06-0410-ace0-fbb531ad65f3