Fixed typo in sip_publish_presence script

Ignore-this: 3d31200cc257cadfcb8e1278f908a88c

darcs-hash:20090518005404-1e3d8-509abdb14c79dd0cd7da9a185a524e2aed74333a
Fixed typo in sip_subscribe_rls script

Ignore-this: 5be47e972ebd93957b80b2564d434ac

darcs-hash:20090518023804-1e3d8-4b283a602692e446bdcd446ab69fb245118b384e