lint whitespace fixes
lint whitespace
lint fix RaetError.__str__
lint - Undefined variable 'CalledProcessError'
lint whitespace
lint - __init__ method from base class 'Exception' is not called
comment lint
lint - Unnecessary parens after u'if' keyword
lint -  Unnecessary parens after u'return' keyword
whitespace lint
Merge pull request #10377 from Stelminator/lint_fixes_2014_02_11

lint fixes