A follow-up to r13107 and r12602, fixing a warning from an undefined TEMP env var, and an error from invocation of sendmail when the address in the sender envelop contains spaces (respectively).
A follow-up to r13107 and r12602, fixing a warning from an undefined
TEMP env var, and an error from invocation of sendmail when the
address in the sender envelop contains spaces (respectively).

Eventually (no later than 2.0), use of the temporary directory can be
removed entirely.


* tools/hook-scripts/commit-email.pl.in
  Assure that $ENV{'TEMP'} is defined before trying to use it.

  Quote email address passed to 'sendmail -f' for the sender envelop
  to avoid forming a bad command-line.


Patch by: Jim Paris <jim@jtan.com>

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion