Minor, fix a fatal on Herald Admin controller
Summary:
Just a bad merge for the edit history, I think. We need to pass $user or we
fatal trying to render timestamps.
https://secure.phabricator.com/herald/all/view/differential/
Test Plan: Looked at Herald admin view.
Reviewers: jungejason, xela, nh, btrahan, fratrik
Reviewed By: fratrik
CC: aran, epriestley
Differential Revision: https://secure.phabricator.com/D1611