Bugzilla Bug 351609: test lib->dlh before calling NSUnLinkModule on Mac. r=Mark Mentovai
Bugzilla Bug 351609: test lib->dlh before calling NSUnLinkModule on Mac.
r=Mark Mentovai

thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr