Treat options to the envsetup script as args.

NOTRY=True

Review URL: https://chromiumcodereview.appspot.com/24350010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@224822 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/build/env_dump.py b/build/env_dump.py
index c896366..21edfe63 100755
--- a/build/env_dump.py
+++ b/build/env_dump.py
@@ -22,6 +22,7 @@
       '-d', '--dump-mode', action='store_true',
       help='Dump the environment to sys.stdout and exit immediately.')
 
+  parser.disable_interspersed_args()
   options, args = parser.parse_args()
   if options.dump_mode:
     if args or options.output_json: