try to not call signaction for signal 0 and use NSIG if it exists to determin how many signals there exists, also, only restore those signalhandlers that we got out.
try to not call signaction for signal 0 and use NSIG if it exists to
determin how many signals there exists, also, only restore those
signalhandlers that we got out.


git-svn-id: 193148810cf65385f3a195dbc9a8b504846da3a2@18156 ec53bebd-3082-4978-b11e-865c3cabbd6b

madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal