if a user use an email address as display_name,launchpad will redacte it and return "display_name": "<email address hidden>",so we hate to validate it before using it. Change-Id: I54d16a8786ed431c2ec5cce0691d7acff47ebc79 Close-Bug:1416311
if a user use an email address as display_name,launchpad will redacte it and return "display_name": "<email address hidden>",so we hate to validate it before using it. Change-Id: I54d16a8786ed431c2ec5cce0691d7acff47ebc79 Close-Bug:1416311