Update docs for git usage

gclient.py

 #!/usr/bin/python
 #
 # Copyright 2008 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
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
 """A wrapper script to manage a set of client modules in different SCM.
 
 This script is intended to be used to help basic management of client
-program sources residing in one or more Subversion modules, along with
-other modules it depends on, also in Subversion, but possibly on
-multiple respositories, making a wrapper system apparently necessary.
+program sources residing in one or more Subversion modules and Git
+repositories, along with other modules it depends on, also in Subversion or Git,
+but possibly on multiple respositories, making a wrapper system apparently
+necessary.
 
 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"
                   to strings specifying the name and location of the client
                   module, as well as "custom_deps" to a map similar to the DEPS
                   file below.
   .gclient_entries : A cache constructed by 'update' command.  Format is a
                   Python script defining 'entries', a list of the names
@@ skipping 45 matching lines @@
 import urlparse
 import urllib
 
 import breakpad
 
 import gclient_scm
 import gclient_utils
 
 # default help text
 DEFAULT_USAGE_TEXT = (
-"""usage: %prog <subcommand> [options] [--] [svn options/args...]
-a wrapper for managing a set of client modules in svn.
+"""usage: %prog <subcommand> [options] [--] [SCM options/args...]
+a wrapper for managing a set of svn client modules and/or git repositories.
 Version """ + __version__ + """
 
 subcommands:
    cleanup
    config
    diff
    export
    pack
    revert
    status
    sync
    update
    runhooks
    revinfo
 
-Options and extra arguments can be passed to invoked svn commands by
+Options and extra arguments can be passed to invoked SCM commands by
 appending them to the command line.  Note that if the first such
 appended option starts with a dash (-) then the options must be
 preceded by -- to distinguish them from gclient options.
 
 For additional help on a subcommand or examples of usage, try
    %prog help <subcommand>
    %prog help files
 """)
 
 GENERIC_UPDATE_USAGE_TEXT = (
     """Perform a checkout/update of the modules specified by the gclient
 configuration; see 'help config'.  Unless --revision is specified,
 then the latest revision of the root solutions is checked out, with
 dependent submodule versions updated according to DEPS files.
 If --revision is specified, then the given revision is used in place
 of the latest, either for a single solution or for all solutions.
 Unless the --force option is provided, solutions and modules whose
 local revision matches the one to update (i.e., they have not changed
 in the repository) are *not* modified. Unless --nohooks is provided,
 the hooks are run.
 This a synonym for 'gclient %(alias)s'
 
-usage: gclient %(cmd)s [options] [--] [svn update options/args]
+usage: gclient %(cmd)s [options] [--] [SCM update options/args]
 
 Valid options:
   --force                 : force update even for unchanged modules
   --nohooks               : don't run the hooks after the update is complete
   --revision SOLUTION@REV : update given solution to specified revision
   --deps PLATFORM(S)      : sync deps for the given platform(s), or 'all'
   --verbose               : output additional diagnostics
   --head                  : update to latest revision, instead of last good revision
 
 Examples:
   gclient %(cmd)s
-      update files from SVN according to current configuration,
+      update files from SCM according to current configuration,
       *for modules which have changed since last update or sync*
   gclient %(cmd)s --force
-      update files from SVN according to current configuration, for
+      update files from SCM according to current configuration, for
       all modules (useful for recovering files deleted from local copy)
   gclient %(cmd)s --revision src@31000
       update src directory to r31000
 """)
 
 COMMAND_USAGE_TEXT = {
     "cleanup":
     """Clean up all working copies, using 'svn cleanup' for each module.
 Additional options and args may be passed to 'svn cleanup'.
 
@@ skipping 1034 matching lines @@
 
 if "__main__" == __name__:
   try:
     result = Main(sys.argv)
   except gclient_utils.Error, e:
     print >> sys.stderr, "Error: %s" % str(e)
     result = 1
   sys.exit(result)
 
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