su_tag.h: added prototype for tl_vllen()
su_tag.h: added prototype for tl_vllen()

darcs-hash:20081215163316-db55f-8beb84eecea69bf938fd747c526368df90f1d249.gz

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