traceback error when a valid-but-expired key is used

 affects pqm

There appears to be a trivial bug in the way PQM handles signatures made
with
expired GPG keys.

----- Forwarded message from Bazaar Patch Queue Manager
<email address hidden> -----

Date: Sat, 10 Nov 2007 14:46:32 +0000 (GMT)
From: Bazaar Patch Queue Manager <email address hidden>
To: Andrew Bennetts <email address hidden>
Subject: error processing requests

An error was encountered:
Traceback (most recent call last):
  File "pqm/bin/pqm", line 218, in do_read_mode
    sigid,siguid = verify_sig(sender, msg, sig, 1, logger)
  File "/home/pqm/pqm/pqm/__init__.py", line 330, in verify_sig
    logger.info ("garh %s : %s", sig_from_key, sig_from_mail)
UnboundLocalError: local variable 'sig_from_key' referenced before
assignment

----- End forwarded message -----

-Andrew.

--
GPG key available at: <http://www.robertcollins.net/keys.txt>.