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

third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/baselineoptimizer.py

 # Copyright (C) 2011, 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 267 matching lines @@
     def write_by_directory(self, results_by_directory, writer, indent):
         for path in sorted(results_by_directory):
             writer("%s%s: %s" % (indent, self._platform(path), results_by_directory[path][0:6]))
 
     def _optimize_subtree(self, baseline_name):
         basename = self._filesystem.basename(baseline_name)
         results_by_directory, new_results_by_directory = self._find_optimal_result_placement(baseline_name)
 
         if new_results_by_directory == results_by_directory:
             if new_results_by_directory:
-                _log.debug("  %s: (already optimal)" % basename)
+                _log.debug("  %s: (already optimal)", basename)
                 self.write_by_directory(results_by_directory, _log.debug, "    ")
             else:
-                _log.debug("  %s: (no baselines found)" % basename)
+                _log.debug("  %s: (no baselines found)", basename)
             # This is just used for unittests. Intentionally set it to the old data if we don't modify anything.
             self.new_results_by_directory.append(results_by_directory)
             return True
 
         if self._results_by_port_name(results_by_directory, baseline_name) != self._results_by_port_name(
                 new_results_by_directory, baseline_name):
             # This really should never happen. Just a sanity check to make sure the script fails in the case of bugs
             # instead of committing incorrect baselines.
-            _log.error("  %s: optimization failed" % basename)
+            _log.error("  %s: optimization failed", basename)
             self.write_by_directory(results_by_directory, _log.warning, "      ")
             return False
 
-        _log.debug("  %s:" % basename)
+        _log.debug("  %s:", basename)
         _log.debug("    Before: ")
         self.write_by_directory(results_by_directory, _log.debug, "      ")
         _log.debug("    After: ")
         self.write_by_directory(new_results_by_directory, _log.debug, "      ")
 
         self._move_baselines(baseline_name, results_by_directory, new_results_by_directory)
         return True
 
     def _optimize_virtual_root(self, baseline_name, non_virtual_baseline_name):
         virtual_root_expected_baseline_path = self._filesystem.join(self._layout_tests_dir, baseline_name)
@@ skipping 38 matching lines @@
         result = self._optimize_subtree(baseline_name)
         non_virtual_baseline_name = self._virtual_base(baseline_name)
         if not non_virtual_baseline_name:
             return result, self._files_to_delete, self._files_to_add
 
         self._optimize_virtual_root(baseline_name, non_virtual_baseline_name)
 
         _log.debug("Optimizing non-virtual fallback path.")
         result |= self._optimize_subtree(non_virtual_baseline_name)
         return result, self._files_to_delete, self._files_to_add