travis: Remove colon in string, which confused travis validator
travis: Remove colon in string, which confused travis validator

nhardt/logcabin,dankenigsberg/logcabin,nhardt/logcabin,chaozh/logcabin,gaoning777/logcabin,tempbottle/logcabin,chaozh/logcabin,logcabin/logcabin,gaoning777/logcabin,TigerZhang/logcabin,logcabin/logcabin,dankenigsberg/logcabin,tempbottle/logcabin,chaozh/logcabin,dankenigsberg/logcabin,gaoning777/logcabin,logcabin/logcabin,dankenigsberg/logcabin,tempbottle/logcabin,nhardt/logcabin,nhardt/logcabin,gaoning777/logcabin,logcabin/logcabin,chaozh/logcabin,TigerZhang/logcabin,tempbottle/logcabin,TigerZhang/logcabin,TigerZhang/logcabin