Fixed incorrect use of rstrip()
Fixed incorrect use of rstrip()

rstrip() ate the last "r" in .rar files. 

"The chars argument is not a suffix; rather, all combinations of its values are stripped"
(see http://docs.python.org/2/library/stdtypes.html#str.rstrip)

Using rsplit() instead.
pyblub/pyload,vuolter/pyload,vuolter/pyload,vuolter/pyload,pyblub/pyload