Use universal EOL conversion when calling the text editor in gcl.

gcl.py

 #!/usr/bin/env python
 # 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.
 
 """\
 Wrapper script around Rietveld's upload.py that simplifies working with groups
 of files.
 """
 
@@ skipping 514 matching lines @@
       update_status: if True, the svn status will be updated for all the files
         and unchanged files will be removed.
 
     Returns: a ChangeInfo object.
     """
     info_file = GetChangelistInfoFile(changename)
     if not os.path.exists(info_file):
       if fail_on_not_found:
         ErrorExit("Changelist " + changename + " not found.")
       return ChangeInfo(changename, 0, 0, '', None, local_root, None, False)
-    content = gclient_utils.FileRead(info_file, 'r')
+    content = gclient_utils.FileRead(info_file)
     save = False
     try:
       values = ChangeInfo._LoadNewFormat(content)
     except ValueError:
       try:
         values = ChangeInfo._LoadOldFormat(content)
         save = True
       except ValueError:
         ErrorExit(
             ('Changelist file %s is corrupt.\n'
@@ skipping 584 matching lines @@
       cmd = '%s %s' % (GetEditor(), filename)
       if sys.platform == 'win32' and os.environ.get('TERM') == 'msys':
         # Msysgit requires the usage of 'env' to be present.
         cmd = 'env ' + cmd
       try:
         # shell=True to allow the shell to handle all forms of quotes in
         # $EDITOR.
         subprocess2.check_call(cmd, shell=True)
       except subprocess2.CalledProcessError, e:
         ErrorExit('Editor returned %d' % e.returncode)
-    result = gclient_utils.FileRead(filename, 'r')
+    result = gclient_utils.FileRead(filename)
   finally:
     os.remove(filename)
 
   if not result:
     return 0
 
   split_result = result.split(separator1, 1)
   if len(split_result) != 2:
     ErrorExit("Don't modify the text starting with ---!\n\n" + result)
 
@@ skipping 328 matching lines @@
       raise
     print >> sys.stderr, (
         'AppEngine is misbehaving and returned HTTP %d, again. Keep faith '
         'and retry or visit go/isgaeup.\n%s') % (e.code, str(e))
     return 1
 
 
 if __name__ == "__main__":
   fix_encoding.fix_encoding()
   sys.exit(main(sys.argv[1:]))