nua.docs: replace reference to nua_cli.c with sofsip_cli
nua.docs: replace reference to nua_cli.c with sofsip_cli

darcs-hash:20071017105011-88462-54e82c5cb3b84d139b3672734ef611d91a303dbf.gz

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