Comment # 4 on bug 1082033 from Dominique Leuenberger

That service file added was incorrect/corrupt and results in an error like:

e.g. a user reported just today on IRC:

12:14 < drFaustroll> Mar 02 12:09:51 circassia firewalld[16657]: ERROR: Failed
to load service file '/usr/lib/firewalld/services/x11.xml': INVALID_SERVICE:
not a valid service file: junk after document element: li