Stoppp using trippple consonants

tools/task_kill.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 #
 
-# A script to kill hanging processs. The tool will return non-zero if any
+# A script to kill hanging process. The tool will return non-zero if any
 # process was actually found.
 #
 
 import optparse
 import os
 import signal
 import subprocess
 import sys
 
 import utils
@@ skipping 221 matching lines @@
     else:
       status += KillDart()
   if options.kill_vc:
     status += KillVCSystems()
   if options.kill_browsers:
     status += KillBrowsers()
   return status
 
 if __name__ == '__main__':
   sys.exit(Main())