cli: wrong error message appears after running 'show event --id <wrong id>'

wrong error message appears after running 'show event --id <wrong id>'

show event --id 12345

Shows error message error: event "[12345]" does not exist.

It should be error: event 12345 does not exist.

Change-Id: I8184e083d9dcc84ca42282046c76513032590b03
Bug-Url: https://bugzilla.redhat.com/980855
Signed-off-by: Ravi Nori <rnori@redhat.com>