Roll version of gsutil to 4.15.

third_party/gsutil/gslib/addlhelp/security.py

 # -*- coding: utf-8 -*-
 # Copyright 2015 Google Inc. All Rights Reserved.
 #
 # 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 169 matching lines @@
 
 <B>RECOMMENDED USER PRECAUTIONS</B>
   The first and foremost precaution is: Never share your credentials. Each user
   should have distinct credentials.
 
   If you run gsutil -D (to generate debugging output) it will include OAuth2
   refresh and access tokens in the output. Make sure to redact this information
   before sending this debug output to anyone during troubleshooting/tech support
   interactions.
 
+  If you run gsutil --trace-token (to send a trace directly to Google),
+  sensitive information like OAuth2 tokens and the contents of any files
+  accessed during the trace may be included in the content of the trace.
+
   The proxy configuration information in the .boto configuration is
   security-sensitive, especially if your proxy setup requires user and
   password information. Even if your proxy setup doesn't require user and
   password, the host and port number for your proxy is often considered
   security-sensitive. Protect access to your .boto configuration file.
 
   If you are using gsutil from a production environment (e.g., via a cron job
   running on a host in your data center), use service account credentials rather
   than individual user account credentials. These credentials were designed for
   such use and, for example, protect you from losing access when an employee
   leaves your company.
 """)
 
 
 class CommandOptions(HelpProvider):
   """Additional help about security and privacy considerations using gsutil."""
 
   # Help specification. See help_provider.py for documentation.
   help_spec = HelpProvider.HelpSpec(
       help_name='security',
       help_name_aliases=['encryption', 'protection', 'privacy', 'proxies',
                          'proxy'],
       help_type='additional_help',
       help_one_line_summary='Security and Privacy Considerations',
       help_text=_DETAILED_HELP_TEXT,
       subcommand_help_text={},
   )