Log Message:
Fix many temporary file handling issues, including in pdfroff
(resolves CVE-2009-5044 / SA44999)
Patches copied from:
 http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/groff/groff-1.20.1-owl-tmp.diff?rev=1.2
Modified for pkgsrc and excluded a documentaion change to doc/groff.texinfo
that changes a `makeinfo' is too old warning into a fatal error.

Added patch to make pdfroff.sh use -dSAFER
See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=538338 for details.