Use underscores to separate words in filenames in webkitpy.

third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/command_test.py

 # Copyright (C) 2009 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #    * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #    * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 11 matching lines @@
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import optparse
 import unittest
 
-from webkitpy.common.system.outputcapture import OutputCapture
+from webkitpy.common.system.output_capture import OutputCapture
 from webkitpy.tool.mock_tool import MockWebKitPatch
 
 
 class CommandsTest(unittest.TestCase):
 
     def assert_execute_outputs(
             self, command, args=None, expected_stdout="", expected_stderr="",
             expected_exception=None, expected_logs=None, options=optparse.Values(), tool=MockWebKitPatch()):
         args = args or []
         options.blocks = None
         options.cc = 'MOCK cc'
         options.component = 'MOCK component'
         options.confirm = True
         options.email = 'MOCK email'
         options.git_commit = 'MOCK git commit'
         options.obsolete_patches = True
         options.open_bug = True
         options.port = 'MOCK port'
         options.update_changelogs = False
         options.quiet = True
         options.reviewer = 'MOCK reviewer'
         OutputCapture().assert_outputs(
             self, command.execute, [options, args, tool], expected_stdout=expected_stdout,
             expected_stderr=expected_stderr, expected_exception=expected_exception, expected_logs=expected_logs)