Remove extra new lines at the ends of Zulip authoried files.

Fixes #1627.

[tweaked by tabbott to avoid patching third-party modules, for now]

scripts/nagios/cron_file_helper.py

@@ -35,4 +35,3 @@ def nagios_from_file(results_file):
             data = pieces[3]
 
     return (ret, "%s: %s" % (state, data))
-