Add missing 's' to options.
Add missing 's' to options.

BUG=none
TEST='gcl try' should succeed even if EMAIL_ADDRESS env variable is not set.

Review URL: http://codereview.chromium.org/351025

git-svn-id: bd64dd6fa6f3f0ed0c0666d1018379882b742947@30870 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

svn2github/chromium-depot-tools,svn2github/chromium-depot-tools,svn2github/chromium-depot-tools