Fix argocd app wait printing incorrect Sync output (resolves #542)

[jessesuen]

Fix argocd app wait printing incorrect Sync output
Timeout condition was not printing final status.

Example outputs:

$ argocd app wait guestbook-default

Application:        guestbook-default
Operation:          Sync
Phase:              Succeeded
Start:              2018-08-31 01:12:17 -0700 PDT
Finished:           2018-08-31 01:12:20 -0700 PDT
Duration:           3s
Message:            successfully synced

KIND        NAME          STATUS  HEALTH   HOOK  OPERATIONMSG
Deployment  guestbook-ui  Synced  Healthy        deployment.apps/guestbook-ui configured
Service     guestbook-ui  Synced  Healthy        service/guestbook-ui unchanged

---

$ argocd app sync guestbook-default
KIND        NAME          STATUS     HEALTH   HOOK  OPERATIONMSG
Deployment  guestbook-ui  OutOfSync  Healthy
Service     guestbook-ui  Synced     Healthy
Deployment  guestbook-ui  OutOfSync  Healthy       deployment.apps/guestbook-ui configured
Service     guestbook-ui  Synced     Healthy       service/guestbook-ui unchanged

Application:        guestbook-default
Operation:          Sync
Phase:              Succeeded
Start:              2018-08-31 01:12:17 -0700 PDT
Finished:           2018-08-31 01:12:20 -0700 PDT
Duration:           3s
Message:            successfully synced

KIND        NAME          STATUS  HEALTH   HOOK  OPERATIONMSG
Deployment  guestbook-ui  Synced  Healthy        deployment.apps/guestbook-ui configured
Service     guestbook-ui  Synced  Healthy        service/guestbook-ui unchanged

---

$ argocd app sync pre-post-sync
KIND        NAME           STATUS     HEALTH   HOOK  OPERATIONMSG
Service     pre-post-sync  OutOfSync  Missing
Deployment  pre-post-sync  OutOfSync  Missing
Job  before-a3ea618-presync-1535703633  Running       PreSync
Job  before-a3ea618-presync-1535703633  Succeeded       PreSync
Service     pre-post-sync  OutOfSync  Missing       service/pre-post-sync created
Deployment  pre-post-sync  OutOfSync  Missing       deployment.apps/pre-post-sync created
Deployment  pre-post-sync  Synced  Progressing       deployment.apps/pre-post-sync created
Service     pre-post-sync  Synced  Healthy           service/pre-post-sync created
Deployment  pre-post-sync  Synced  Healthy       deployment.apps/pre-post-sync created
Job  after-a3ea618-postsync-1535703633  Running       PostSync
Job  after-a3ea618-postsync-1535703633  Succeeded       PostSync

Application:        pre-post-sync
Operation:          Sync
Phase:              Succeeded
Start:              2018-08-31 01:20:33 -0700 PDT
Finished:           2018-08-31 01:21:48 -0700 PDT
Duration:           1m15s
Message:            successfully synced

KIND        NAME                               STATUS     HEALTH   HOOK      OPERATIONMSG
Job         before-a3ea618-presync-1535703633  Succeeded           PreSync
Service     pre-post-sync                      Synced     Healthy            service/pre-post-sync created
Deployment  pre-post-sync                      Synced     Healthy            deployment.apps/pre-post-sync created
Job         after-a3ea618-postsync-1535703633  Succeeded           PostSync