fix callback syntax after dnswl cfg file change (#1794)
fix callback syntax after dnswl cfg file change (#1794)


smfreegard/Haraka,msimerson/Haraka,msimerson/Haraka,Synchro/Haraka,smfreegard/Haraka,bsmr-x-script/Haraka,msimerson/Haraka,smfreegard/Haraka,haraka/Haraka,msimerson/Haraka,Synchro/Haraka,Synchro/Haraka,haraka/Haraka,bsmr-x-script/Haraka,hatsebutz/Haraka,bsmr-x-script/Haraka,haraka/Haraka,hatsebutz/Haraka,Synchro/Haraka,haraka/Haraka,smfreegard/Haraka,hatsebutz/Haraka,bsmr-x-script/Haraka,hatsebutz/Haraka