remove superfluous commas (which also cause xt/ failure)
remove superfluous commas (which also cause xt/ failure)

MasterDuke17/doc,antquinonez/doc,jonathanstowe/doc,antquinonez/doc,stmuk/doc,jonathanstowe/doc,dmaestro/doc,dmaestro/doc,perl6/doc,dmaestro/doc,gfldex/doc,stmuk/doc,gfldex/doc,MasterDuke17/doc,perl6/doc,stmuk/doc,MasterDuke17/doc,gfldex/doc,jonathanstowe/doc,perl6/doc,tbrowder/doc,jonathanstowe/doc,perl6/doc,antquinonez/doc,jonathanstowe/doc,gfldex/doc,antquinonez/doc,tbrowder/doc,perl6/doc,stmuk/doc,tbrowder/doc,MasterDuke17/doc,stmuk/doc,dmaestro/doc,gfldex/doc,dmaestro/doc,tbrowder/doc,antquinonez/doc