do not show --accept-all option in help

darcs-hash:20081125120545-b2873-ba1f77605860af53c892dfd47b6e232fe3b5eeaf
sip_im_session.py: ring on inbound sessions too

darcs-hash:20081125125109-b2873-07850e9db9580f16f8c9149bedff18fd9187eb10