fix TestEndTransactionWithErrors
fix TestEndTransactionWithErrors

the timestamp it used in the assertion relied
on absence of calls to clock.Now() and hence
depended on goroutine scheduling.

vaibhavarora/cockroach,mbertschler/cockroach,petermattis/cockroach,mbertschler/cockroach,marcuswestin/cockroach,marcuswestin/cockroach,il9ue/cockroach,petermattis/cockroach,bg451/cockroach,marcuswestin/cockroach,bg451/cockroach,il9ue/cockroach,cuongdo/cockroach,nieyy/cockroach,vivekmenezes/cockroach,vaibhavarora/cockroach,vaibhavarora/cockroach,cuongdo/cockroach,glycerine/cockroach,cuongdo/cockroach,vaibhavarora/cockroach,nieyy/cockroach,mbertschler/cockroach,bg451/cockroach,nieyy/cockroach,veteranlu/cockroach,mbertschler/cockroach,cockroachdb/cockroach,cockroachdb/cockroach,vaibhavarora/cockroach,petermattis/cockroach,cockroachdb/cockroach,maxlang/cockroach,maxlang/cockroach,marcuswestin/cockroach,bg451/cockroach,paperstreet/cockroach,glycerine/cockroach,il9ue/cockroach,arjun4084346/cockroach,maxlang/cockroach,vaibhavarora/cockroach,veteranlu/cockroach,cockroachdb/cockroach,maxlang/cockroach,arjun4084346/cockroach,mbertschler/cockroach,petermattis/cockroach,petermattis/cockroach,cuongdo/cockroach,marcuswestin/cockroach,arjun4084346/cockroach,il9ue/cockroach,veteranlu/cockroach,bg451/cockroach,arjun4084346/cockroach,sunya123/cockroach,vivekmenezes/cockroach,veteranlu/cockroach,vivekmenezes/cockroach,vivekmenezes/cockroach,sunya123/cockroach,paperstreet/cockroach,sunya123/cockroach,marcuswestin/cockroach,cuongdo/cockroach,sunya123/cockroach,veteranlu/cockroach,paperstreet/cockroach,sunya123/cockroach,nieyy/cockroach,cockroachdb/cockroach,cuongdo/cockroach,bg451/cockroach,glycerine/cockroach,il9ue/cockroach,vivekmenezes/cockroach,paperstreet/cockroach,vaibhavarora/cockroach,glycerine/cockroach,sunya123/cockroach,nieyy/cockroach,paperstreet/cockroach,maxlang/cockroach,il9ue/cockroach,cockroachdb/cockroach,paperstreet/cockroach,petermattis/cockroach,cuongdo/cockroach,maxlang/cockroach,arjun4084346/cockroach,sunya123/cockroach,petermattis/cockroach,il9ue/cockroach,vivekmenezes/cockroach,sunya123/cockroach,veteranlu/cockroach,mbertschler/cockroach,maxlang/cockroach,cuongdo/cockroach,paperstreet/cockroach,il9ue/cockroach,mbertschler/cockroach,paperstreet/cockroach,veteranlu/cockroach,nieyy/cockroach,veteranlu/cockroach,bg451/cockroach,arjun4084346/cockroach,nieyy/cockroach,cockroachdb/cockroach,marcuswestin/cockroach,glycerine/cockroach,cockroachdb/cockroach,vivekmenezes/cockroach,marcuswestin/cockroach,glycerine/cockroach,maxlang/cockroach,nieyy/cockroach,glycerine/cockroach,arjun4084346/cockroach,arjun4084346/cockroach,petermattis/cockroach,vivekmenezes/cockroach,vaibhavarora/cockroach,glycerine/cockroach