packaging: Updated cleanup to work in python2.6

This patch updates the getFiles() function call to
return dict(key, value) instead of dict comprehension {key: value}
because python 2.6 (the one in rhel and centos) doesn't
allow dict comprehensions.

Change-Id: I9106e331e4e71b8641428c1f00d9d13a80a56b82
Signed-off-by: Alex Lourie <alourie@redhat.com>