msg_parser_util.c: fixed klocwork issues
msg_parser_util.c: fixed klocwork issues

darcs-hash:20080522143727-65a35-a2aca787c3fdd1fb68bd610596130ed04890841a.gz

unispeech/sofia-sip,xhook/sofia-sip,unispeech/sofia-sip,unispeech/sofia-sip,jart/sofia-sip,BelledonneCommunications/sofia-sip,jart/sofia-sip,xhook/sofia-sip,xhook/sofia-sip,xhook/sofia-sip,BelledonneCommunications/sofia-sip,erdincay/sofia-sip,jart/sofia-sip,erdincay/sofia-sip,BelledonneCommunications/sofia-sip,BelledonneCommunications/sofia-sip,unispeech/sofia-sip,erdincay/sofia-sip,xhook/sofia-sip,erdincay/sofia-sip