Slight fix for gclient readability

gclient.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.
 
 """Meta checkout manager supporting both Subversion and GIT."""
 # Files
 #   .gclient      : Current client configuration, written by 'config' command.
 #                   Format is a Python script defining 'solutions', a list whose
 #                   entries each are maps binding the strings "name" and "url"
@@ skipping 1463 matching lines @@
     """Checks for revision overrides."""
     revision_overrides = {}
     if not self._options.revisions:
       for s in self.dependencies:
         if not s.managed and not self._options.head:
           self._options.revisions.append('%s@unmanaged' % s.name)
     if not self._options.revisions:
       return revision_overrides
     solutions_names = [s.name for s in self.dependencies]
     for i, revision in enumerate(self._options.revisions):
-      if not '@' in revision:
+      if '@' in revision:
+        name, rev = revision.split('@', 1)
+      else:
         # Support for --revision 123
         name, rev = solutions_names[i], revision
-      else:
-        name, rev = revision.split('@', 1)
       revision_overrides[name] = rev
     return revision_overrides
 
   def RunOnDeps(self, command, args, ignore_requirements=False, progress=True):
     """Runs a command on each dependency in a client and its dependencies.
 
     Args:
       command: The command to use (e.g., 'status' or 'diff')
       args: list of str - extra arguments to add to the command line.
     """
@@ skipping 816 matching lines @@
 
 
 if '__main__' == __name__:
   try:
     sys.exit(main(sys.argv[1:]))
   except KeyboardInterrupt:
     sys.stderr.write('interrupted\n')
     sys.exit(1)
 
 # vim: ts=2:sw=2:tw=80:et: