If `cmClient.Watch()` failed, `watcher.Stop()` causes null pointer
dereference.
Signed-off-by: Satoru Takeuchi <satoru.takeuchi@gmail.com>
(cherry picked from commit b1a81509a5)
If `cmClient.Watch()` failed, `watcher.Stop()` causes null pointer
dereference.
Signed-off-by: Satoru Takeuchi <satoru.takeuchi@gmail.com>
(cherry picked from commit b1a81509a5)