Fix trailing whitespace in scripts and misc. files

Source/core/features.gypi

Index: Source/core/features.gypi
diff --git a/Source/core/features.gypi b/Source/core/features.gypi
index e157f2d0815dc4fcc5c1d8ea5a26e9784992e099..3ed82e7f0ef74f1dece7a2060face182bcd95f72 100644
--- a/Source/core/features.gypi
+++ b/Source/core/features.gypi
@@ -1,10 +1,10 @@
 #
 # Copyright (C) 2009 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
@@ -14,7 +14,7 @@
 #     * Neither the name of Google Inc. nor the names of its
 # contributors may be used to endorse or promote products derived from
 # this software without specific prior written permission.
-# 
+#
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR