Change logging statements to not use the "%" operator.

third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/scm/detection.py

 # Copyright (c) 2009, 2010, 2011 Google Inc. All rights reserved.
 # Copyright (c) 2009 Apple 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
@@ skipping 39 matching lines @@
         CWD is not in a checkout, then we attempt to figure out if the SCM module
         itself is part of a checkout, and return that one. If neither is part of
         a checkout, None is returned.
         """
         cwd = self._filesystem.getcwd()
         scm_system = self.detect_scm_system(cwd, patch_directories)
         if not scm_system:
             script_directory = self._filesystem.dirname(self._filesystem.path_to_module(self.__module__))
             scm_system = self.detect_scm_system(script_directory, patch_directories)
             if scm_system:
-                _log.info("The current directory (%s) is not a WebKit checkout, using %s" % (cwd, scm_system.checkout_root))
+                _log.info("The current directory (%s) is not a WebKit checkout, using %s", cwd, scm_system.checkout_root)
             else:
                 raise Exception("FATAL: Failed to determine the SCM system for either %s or %s" % (cwd, script_directory))
         return scm_system
 
     def detect_scm_system(self, path, patch_directories=None):
         absolute_path = self._filesystem.abspath(path)
 
         if patch_directories == []:
             patch_directories = None
 
         if Git.in_working_directory(absolute_path, executive=self._executive):
             return Git(cwd=absolute_path, filesystem=self._filesystem, executive=self._executive)
 
         return None
 
 
 # FIXME: These free functions are all deprecated:
 
 def detect_scm_system(path, patch_directories=None):
     return SCMDetector(FileSystem(), Executive()).detect_scm_system(path, patch_directories)