Fix typo in bless documentation
Fix typo in bless documentation

Changes the meaning, but should be correct according to the context.
MasterDuke17/doc,perl6/doc,tbrowder/doc,dmaestro/doc,tbrowder/doc,stmuk/doc,dmaestro/doc,tbrowder/doc,stmuk/doc,MasterDuke17/doc,MasterDuke17/doc,jonathanstowe/doc,perl6/doc,perl6/doc,jonathanstowe/doc,perl6/doc,MasterDuke17/doc,dmaestro/doc,dmaestro/doc,jonathanstowe/doc,dmaestro/doc,stmuk/doc,tbrowder/doc,stmuk/doc,perl6/doc,jonathanstowe/doc,stmuk/doc,jonathanstowe/doc