remove trailing newlines form python modules

pylint-1.6.4-1.fc26.noarch reports these, hence they should be fixed in order
to build FreeIPA with this version

https://fedorahosted.org/freeipa/ticket/6391

Reviewed-By: Martin Basti <mbasti@redhat.com>

doc/examples/examples.py

@@ -438,5 +438,3 @@ class exuser_find(Method):
 # authors from doing all the dirty work. Let's take a look at them.
 
 # COMING SOON: baseldap.py classes, extending existing plugins, etc.
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