scripts: standardize main(argv)

Most of our files use main(argv).  Fix the few that don't.

BUG=None
TEST=ran help on each of these
TEST=`cbuildbot chromiumos-sdk`

Change-Id: Iac3a5096e7dd450350548102934f29fdeaac28d5
Reviewed-on: https://gerrit.chromium.org/gerrit/57124
Reviewed-by: Matt Tennant <mtennant@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/cros.py b/scripts/cros.py
index e152f6c..eb5ab76 100644
--- a/scripts/cros.py
+++ b/scripts/cros.py
@@ -31,15 +31,15 @@
   subcommand.Run()
 
 
-def main(args):
+def main(argv):
   parser = GetOptions(commands.ListCommands())
   # Cros currently does nothing without a subcmd. Print help if no args are
   # specified.
-  if not args:
+  if not argv:
     parser.print_help()
     return 1
 
-  namespace = parser.parse_args(args)
+  namespace = parser.parse_args(argv)
   subcommand = namespace.cros_class(namespace)
   with stats.UploadContext() as queue:
     if subcommand.upload_stats: