Revision 155513 of chan_sip.c in trunk inadvertently

removed a very important line to set the "len" field
for incoming SIP requests. The result was that all incoming
SIP messages appeared to be 0-length, meaning Asterisk
could do no meaningful processing of anything SIP-related



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@156962 65c4cc65-6c06-0410-ace0-fbb531ad65f3