grepmail version 3.3

Grepmail searches a normal or gzip'ed mailbox for a given regular expression,
and returns those emails that match it. Piped input is allowed, and date
restrictions are supported.

New in version 3.3: Added bzip2 support. Improved error checking on piped
binary input. Added debugging code.

New in version 3.2: Added TMPFILE environment variable support, and a signal
handler. Fixed a bug where the last paragraph of the last email in a mailbox
would not be printed on Linux.

Written by David Coppit (coppit@cs.virginia.edu,
  http://www.cs.virginia.edu/~dwc3q/index.html)

Please send me any modifications you make. (for the better, that is. :) I have
a suite of tests that I can give you if you ask. Keep in mind that I'm likely
to turn down obscure features to avoid including everything but the kitchen
sink.

This code is distributed under the GNU General Public License (GPL). See
http://www.opensource.org/gpl-license.html and http://www.opensource.org/.