Remove trailing periods from rule messages.

chrome/chrome_resources.gyp

 # 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.
 {
   'variables': {
     'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/chrome',
     'about_credits_file': '<(SHARED_INTERMEDIATE_DIR)/about_credits.html',
     'additional_modules_list_file': '<(SHARED_INTERMEDIATE_DIR)/chrome/browser/internal/additional_modules_list.txt',
     'repack_locales_cmd': ['python', 'tools/build/repack_locales.py'],
   },
@@ skipping 122 matching lines @@
               ],
               'outputs': [
                 '<(additional_modules_list_file)',
               ],
               'action': [
                 'python',
                 '<(additional_modules_py_path)',
                 '<(additional_modules_input_path)',
                 '<@(_outputs)',
               ],
-              'message': 'Transforming additional modules list.',
+              'message': 'Transforming additional modules list',
             }
           ],
         }],
       ],
     },
     {
       # TODO(mark): It would be better if each static library that needed
       # to run grit would list its own .grd files, but unfortunately some
       # of the static libraries currently have circular dependencies among
       # generated headers.
@@ skipping 353 matching lines @@
                      '<(generator_path)',
                      'credits',
                      '<(about_credits_file)',
           ],
           'message': 'Generating about:credits',
         },
       ],
     },
   ], # targets
 }