don't always run LASTCHANGE

chrome/installer/mini_installer_syzygy.gyp

 # Copyright (c) 2011 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': {
     'version_py': '<(DEPTH)/chrome/tools/build/version.py',
     'version_path': '<(DEPTH)/chrome/VERSION',
-    'lastchange_path': '<(SHARED_INTERMEDIATE_DIR)/build/LASTCHANGE',
+    'lastchange_path': '<(DEPTH)/build/util/LASTCHANGE',
     # 'branding_dir' is set in the 'conditions' section at the bottom.
     'msvs_use_common_release': 0,
     'msvs_use_common_linker_extras': 0,
   },
   'includes': [
     '../../build/win_precompile.gypi',
   ],
   'conditions': [
     # This target won't build in fastbuild, since there are no PDBs. 
     ['OS=="win" and fastbuild==0', {
@@ skipping 17 matching lines @@
       'variables': {
          'branding_dir': '../app/theme/google_chrome',
       },
     }, {  # else branding!="Chrome"
       'variables': {
          'branding_dir': '../app/theme/chromium',
       },
     }],
   ],
 }