Closing activationLock only if it's not closed already. This is needed
only because integration tests using docker code directly and doesn't
care about global state.
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
(cherry picked from commit c717475714)
Docker-DCO-1.1-Signed-off-by: Jessie Frazelle <jess@docker.com> (github: jfrazelle)
Docker-DCO-1.1-Signed-off-by: Jessie Frazelle <princess@docker.com> (github: jfrazelle)
