Tweaked debug message on AsyncLock
Tweaked debug message on AsyncLock

simonferquel/MetroLog,noxo/MetroLog,onovotny/MetroLog,noxo/MetroLog,simonferquel/MetroLog,thomasgalliker/MetroLog,mbrit/MetroLog,thomasgalliker/MetroLog,thomasgalliker/MetroLog,simonferquel/MetroLog,simonferquel/MetroLog,onovotny/MetroLog,mbrit/MetroLog,noxo/MetroLog,mbrit/MetroLog,onovotny/MetroLog,noxo/MetroLog