sip_parser.c: fixed overrrun in sip_method_name()
sip_parser.c: fixed overrrun in sip_method_name()

Ignore-this: efe0fc0935451b1b0ee403befac5df40

Coverity issue.

darcs-hash:20090513160906-db55f-165ac95bce2878d572aa56402e2485109ca3d266.gz

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