minor flake8 fixes

testing/python/collect.py

@@ -908,7 +908,7 @@ def test_unorderable_types(testdir):
     """)
     result = testdir.runpytest()
     assert "TypeError" not in result.stdout.str()
-    assert result.ret == EXIT_NOTESTSCOLLECTED    
+    assert result.ret == EXIT_NOTESTSCOLLECTED
 
 
 def test_collect_functools_partial(testdir):

testing/test_terminal.py

@@ -53,7 +53,6 @@ def pytest_generate_tests(metafunc):
         DistInfo(project_name='test', version=1)
     ], ['test-1']),
 ], ids=['normal', 'prefix-strip', 'deduplicate'])
-
 def test_plugin_nameversion(input, expected):
     pluginlist = [(None, x) for x in input]
     result = _plugin_nameversions(pluginlist)