tree 9a37857a2bce9c50f070f4b14762e44e91bbcd88
parent f695aed21e651f4cab3030d86b1c762cfbc86bd5
author Zhenkai Zhu <zhenkai@cs.ucla.edu> 1359588052 -0800
committer Zhenkai Zhu <zhenkai@cs.ucla.edu> 1359589835 -0800

add validators of input
no trailing/prefacing whitespace; no "/" as username
add change id

Change-Id: Id8b67f61eddca4fd884a58f89a99cdd9e6e0f2df