tree cdb6c69535aa70f9f0650cb3b9fbd5806508e18c
parent b849b72551b91bfca221c5d65ddc60b7d2d9e81c
author Shawn O. Pearce <sop@google.com> 1273005607 -0700
committer Shawn O. Pearce <sop@google.com> 1273008356 -0700

Allow user name to be cleared when unset in LDAP

If the user name is set in Gerrit, but is no longer configured
in LDAP, allow it to be cleared by passing in a null name to the
ChangeUserName action.

Change-Id: Ie52fdf5b899e61456ea268aef93795ca00eed213
Signed-off-by: Shawn O. Pearce <sop@google.com>