[io grant] Add warning to dir about...
[io grant] Add warning to dir about...

...exhausting open files limit due to not exhausing the
iterator of the Seq the routine returns.

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