Merge "repo_pull: Remove required -g param in repo_review"

tools/repo_pull/README.md

@@ -70,7 +70,6 @@ These are common queries:
 ### Options
 
 * `-g` or `--gerrit` specifies the URL of the Gerrit Code Review website.
-  *(required)*
 
 * `-b` or `--branch` specifies the local branch name that will be passed to
   `repo start`.

tools/repo_pull/repo_review.py

@@ -31,9 +31,10 @@ except ImportError:
     from urllib2 import HTTPError  # PY2
 
 from gerrit import (
-    add_reviewers, delete_reviewer, abandon, create_url_opener_from_args,
-    delete_topic, query_change_lists, set_hashtags, set_review, set_topic,
-    submit)
+    abandon, add_reviewers, create_url_opener_from_args, delete_reviewer,
+    delete_topic, find_gerrit_name, query_change_lists, set_hashtags,
+    set_review, set_topic, submit
+)
 
 
 def _get_labels_from_args(args):
@@ -87,8 +88,7 @@ def _parse_args():
     parser = argparse.ArgumentParser()
 
     parser.add_argument('query', help='Change list query string')
-    parser.add_argument('-g', '--gerrit', required=True,
-                        help='Gerrit review URL')
+    parser.add_argument('-g', '--gerrit', help='Gerrit review URL')
 
     parser.add_argument('--gitcookies',
                         default=os.path.expanduser('~/.gitcookies'),