grepmail version 3.2

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 3.2: 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.

New in version 3.1: Modified the decompression to be more compatible with
older versions of gzip. Improved error checking so that "grepmail -h" prints a
usage message. Added -m flag, which causes an "X-Mailfolder" line to be added
to the header, thereby showing which folder contained the message.

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/.