Redundant docstrings are redundant. Reduce redundancy.

tools/isolate/trace_inputs.py

 #!/usr/bin/env python
 # coding=utf-8
 # 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.
 
 """Traces an executable and its child processes and extract the files accessed
 by them.
 
 The implementation uses OS-specific API. The native Kernel logger and the ETL
@@ skipping 1563 matching lines @@
 
       Example:
         With text = '\\001python2.7\\001-c\\001print(\\"hi\\")\\0', the
         function will return ['python2.7', '-c', 'print("hi")]
       """
       if not text.endswith('\\0'):
         raise ValueError('String is not null terminated: %r' % text, text)
       text = text[:-2]
 
       def unescape(x):
-        """Replaces '\\' with '\' and '\?' (where ? is anything) with ?.
-
-        Implemented as an automaton.
-        """
+        """Replaces '\\' with '\' and '\?' (where ? is anything) with ?."""
         out = []
         escaped = False
         for i in x:
           if i == '\\' and not escaped:
             escaped = True
             continue
           escaped = False
           out.append(i)
         return ''.join(out)
 
@@ skipping 1478 matching lines @@
     return command(argv[1:])
   except TracingFailure, e:
     sys.stderr.write('\nError: ')
     sys.stderr.write(str(e))
     sys.stderr.write('\n')
     return 1
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))