Write newlines at the end of C files.

grit/format/c_format.py

 #!/usr/bin/env python
 # 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.
 
 """Formats as a .C file for compilation.
 """
 
 import os
 import re
@@ skipping 27 matching lines @@
 
   yield _FormatHeader(root, output_dir)
 
   yield 'const char* GetString(int id) {\n  switch (id) {'
 
   for item in root.ActiveDescendants():
     with item:
       if isinstance(item, message.MessageNode):
         yield _FormatMessage(item, lang)
 
-  yield '\n    default:\n      return 0;\n  }\n}'
+  yield '\n    default:\n      return 0;\n  }\n}\n'
 
 
 def _HexToOct(match):
   "Return the octal form of the hex numbers"
   hex = match.group("hex")
   result = ""
   while len(hex):
     next_num = int(hex[2:4], 16)
     result += "\\" + '%03d' % int(oct(next_num), 10)
     hex = hex[4:]
@@ skipping 18 matching lines @@
     % (escaped_backslashes, hex_digits))
   message = two_digit_hex_num.sub(_HexToOct, message)
   # unescape \ (convert \\ back to \)
   message = message.replace('\\\\', '\\')
   message = message.replace('"', '\\"')
   message = util.LINEBREAKS.sub(r'\\n', message)
 
   name_attr = item.GetTextualIds()[0]
 
   return '\n    case %s:\n      return "%s";' % (name_attr, message)