"up-to-date" should only use hyphens when used as compound modifier of a noun

tools/valgrind/valgrind_test.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Runs an exe through Valgrind and puts the intermediate files in a
 directory.
 """
 
 import datetime
 import glob
@@ skipping 268 matching lines @@
 
     Valgrind for Mac OS X requires that debugging information be in a .dSYM
     bundle generated by dsymutil.  It is not currently able to chase DWARF
     data into .o files like gdb does, so executables without .dSYM bundles or
     with the Chromium-specific "fake_dsym" bundles generated by
     build/mac/strip_save_dsym won't give source file and line number
     information in valgrind.
 
     This function will run dsymutil if the .dSYM bundle is missing or if
     it looks like a fake_dsym.  A non-fake dsym that already exists is assumed
-    to be up-to-date.
+    to be up to date.
     """
     test_command = self._args[0]
     dsym_bundle = self._args[0] + '.dSYM'
     dsym_file = os.path.join(dsym_bundle, 'Contents', 'Resources', 'DWARF',
                              os.path.basename(test_command))
     dsym_info_plist = os.path.join(dsym_bundle, 'Contents', 'Info.plist')
 
     needs_dsymutil = True
     saved_test_command = None
 
@@ skipping 537 matching lines @@
       return DrMemory(False, True)
     try:
       platform_name = common.PlatformNames()[0]
     except common.NotImplementedError:
       platform_name = sys.platform + "(Unknown)"
     raise RuntimeError, "Unknown tool (tool=%s, platform=%s)" % (tool_name,
                                                                  platform_name)
 
 def CreateTool(tool):
   return ToolFactory().Create(tool)