tree 7da21b0495361fc57320f2a2bcc9d983ea29ec4e
parent 56b4575e9bb774dbfd4cff2406e13a3292cde163
author Lei YU <yulei.sh@bytedance.com> 1596104087 +0000
committer Lei YU <yulei.sh@bytedance.com> 1596104087 +0000

obmc-gerrit: Make topic optional

Make topic argument optional so that users do not have to specify a
topic.

Signed-off-by: Lei YU <yulei.sh@bytedance.com>
Change-Id: If743abeb6820a85d72a4d7049ba086f4d64635e5