make $*OUT & friends more discoverable for google
make $*OUT & friends more discoverable for google

by mentioning their more common names "stdout" and such.

LLFourn/doc,antquinonez/doc,stmuk/doc,LLFourn/doc,perl6/doc,dmaestro/doc,perl6/doc,dha/doc,antquinonez/doc,MasterDuke17/doc,dha/doc,MadcapJake/doc,jonathanstowe/doc,LLFourn/doc,antquinonez/doc,stmuk/doc,perl6/doc,stmuk/doc,dmaestro/doc,stmuk/doc,MasterDuke17/doc,dha/doc,dmaestro/doc,gfldex/doc,MasterDuke17/doc,dha/doc,jonathanstowe/doc,antquinonez/doc,perl6/doc,gfldex/doc,jonathanstowe/doc,tbrowder/doc,LLFourn/doc,gfldex/doc,dha/doc,gfldex/doc,LLFourn/doc,tbrowder/doc,dmaestro/doc,jonathanstowe/doc,antquinonez/doc,perl6/doc,MadcapJake/doc,MadcapJake/doc,MadcapJake/doc,tbrowder/doc,MadcapJake/doc,jonathanstowe/doc,dmaestro/doc,gfldex/doc,tbrowder/doc,stmuk/doc,MasterDuke17/doc