Avoid an assertion failure and crash of the python interpreter caused by

pygtk's usage of the deprecated PyCObject and Python 2.7.

https://bugzilla.redhat.com/show_bug.cgi?id=621887

Index: gajim-0.13.90/src/gajim.py

===================================================================

--- gajim-0.13.90.orig/src/gajim.py

+++ gajim-0.13.90/src/gajim.py

@@ -133,7 +133,7 @@ if os.name == 'nt':

     sys.stderr = MyStderr()

 # PyGTK2.10+ only throws a warning

-warnings.filterwarnings('error', module='gtk')

+warnings.filterwarnings('error', module='gtk', append=True)

 try:

     import gobject

     import gtk