9d6a34a Show state name in state transition log

Authored and Committed by cqi 4 years ago
    Show state name in state transition log
    
    This will show log like "State transition: init -> wait, ...", which is
    much straightforward than showing state number "state 1->2".
    
    Signed-off-by: Chenxiong Qi <cqi@redhat.com>