Flake8 stuff

I should make a habit of testing nose AND flake before pushing...

vispy/util/tests/test_import.py

@@ -14,7 +14,7 @@
 
 def check_output(*popenargs, **kwargs):
     """ Minimal py 2.6 compatible version of subprocess.check_output()
-    
+
     Py2.6 does not have check_output.
     Taken from https://gist.github.com/edufelipe/1027906
     """
@@ -33,7 +33,7 @@ def check_output(*popenargs, **kwargs):
 
 def loaded_vispy_modules(import_module, depth=None):
     """ Import the given module in subprocess and return loaded modules
-    
+
     Import a certain module in a clean subprocess and return the
     vispy modules that are subsequently loaded. The given depth
     indicates the module level (i.e. depth=1 will only yield 'vispy.app'