Fix for segfault in pgmodule.c: pgquery_dictresult()

This is a quick patch to fix a crash in pgquery_dictresult() introduced
recently. I just ran into it while running a set of python test scripts,
and I'm not sure who the normal maintainer is for interfaces/python.

Regards,
  John Nield



--
J. R. Nield
jrnield@usol.com