Bugzilla bug #17806: made the comments for PR_Poll clearer about the fact that the out_flags fields can only be checked on a successful return.
Bugzilla bug #17806: made the comments for PR_Poll clearer about the
fact that the out_flags fields can only be checked on a successful
return.

makotokato/nsprpub,makotokato/nsprpub,makotokato/nsprpub,makotokato/nsprpub,makotokato/nsprpub