[Telemetry] Update pyfakefs to latest revision.

tools/telemetry/third_party/pyfakefs/pyfakefs/example.py

 # Copyright 2014 Altera Corporation. All Rights Reserved.
 # Author: John McGehee
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
@@ skipping 11 matching lines @@
 
 >>> os     #doctest: +ELLIPSIS 
 <fake_filesystem.FakeOsModule object...>
 >>> os.path     #doctest: +ELLIPSIS
 <fake_filesystem.FakePathModule object...>
 >>> glob     #doctest: +ELLIPSIS
 <fake_filesystem_glob.FakeGlobModule object...>
 >>> shutil     #doctest: +ELLIPSIS
 <fake_filesystem_shutil.FakeShutilModule object...>
 
-The `file()` and `open()` built-ins are bound to the fake `open()`:
+The `open()` built-in is bound to the fake `open()`:
 
->>> file     #doctest: +ELLIPSIS
-<fake_filesystem.FakeFileOpen object...>
 >>> open     #doctest: +ELLIPSIS
 <fake_filesystem.FakeFileOpen object...>
+
+In Python 2 the `file()` built-in is also bound to the fake `open()`.  `file()`
+was eliminated in Python 3.
 """
 
 import os
 import glob
 import shutil
 
 def create_file(path):
     '''Create the specified file and add some content to it.  Use the `open()`
     built in function.
     
@@ skipping 63 matching lines @@
     >>> create_file('/test/file1.txt')
     >>> create_file('/test/file2.txt')
     >>> get_glob('/test/file*.txt')
     ['/test/file1.txt', '/test/file2.txt']
     '''
     return glob.glob(glob_path)
 
 def rm_tree(path):
     '''Delete the specified file hierarchy.'''
     shutil.rmtree(path)