Update shaker scenario name in browbeat-complete.
Update shaker scenario name in browbeat-complete.

This scenario name didn't match the convention followed by all other
scenarios in this file.

Change-Id: Ib02a82c71f2941c4e224c94faa84cc9f1085637c
Signed-off-by: Russell Bryant <b61ba72562ef1f6718e4f653428a87ed07b576b8@redhat.com>

jkilpatr/browbeat,jkilpatr/browbeat