The secure configuration file can be used to store only passwords,
or other data which must be node specific and cannot otherwise be
shared. This makes it easier to check gerrit.config into an SCM
and track changes on it, without leaking key account information.
Bug: issue 325
Change-Id: Iae5fa5ff853d116f2957fffcf3820e63bb830fd5
Signed-off-by: Shawn O. Pearce <sop@google.com>
0d4037aef3