remove all trailing blank lines

by running this command:
git ls-files -z | xargs -0 perl -pi -0777 -e 's/\n\n+$/\n/'
This is in preparation for a more strict make syntax-check
rule that will detect trailing blank lines.

docs/examples/python/README

@@ -12,4 +12,3 @@ domrestore.py - restore domU's from their saved files in a directory
 The XML files in this directory are examples of the XML format that libvirt
 expects, and will have to be adapted for your setup. They are only needed
 for domstart.py
-

docs/examples/python/dominfo.py

@@ -82,5 +82,3 @@ for d in devs:
     elif type == "bridge":
         print_xml("Source:", ctx, "source/@bridge")
         print_xml("MAC Addr:", ctx, "mac/@address")
-
-