More helpful error message on mistaken case list syntax
More helpful error message on mistaken case list syntax

DmitryOlshansky/SDC,deadalnix/SDC,UplinkCoder/SDC,UplinkCoder/SDC,deadalnix/SDC,carlor/SDC,sidmutha/SDC,JohanEngelen/SDC,bpr/SDC,SDC-Developers/SDC,UplinkCoder/SDC,schancel/SDC,schancel/SDC,bpr/SDC,bpr/SDC,JohanEngelen/SDC,DmitryOlshansky/SDC,SDC-Developers/SDC,DmitryOlshansky/SDC,SDC-Developers/SDC,sidmutha/SDC,schancel/SDC,deadalnix/SDC,sidmutha/SDC,JohanEngelen/SDC