Use "exec" instead of "execfile" (deprecated in Python 3).

This was the only compatibility issue reported by "python2 -3".

Signed-off-by: Jeremy Heiner <ScalaProtractor at gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

test/pacman/pmtest.py

@@ -100,7 +100,8 @@ class pmtest(object):
         if os.path.isfile(self.name):
             # all tests expect this to be available
             from pmpkg import pmpkg
-            execfile(self.name)
+            with open(self.name) as input:
+                exec(input.read(),locals())
         else:
             raise IOError("file %s does not exist!" % self.name)