Backed out the previous checkin.  I'd like to come up with a better patch that does not require setting FD_SETSIZE to 1024, which makes each fd_set a 4 KB objec5.
Backed out the previous checkin.  I'd like to come up with a better patch
that does not require setting FD_SETSIZE to 1024, which makes each fd_set
a 4 KB objec5.

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