remove "if possible" from run
remove "if possible" from run

The way it was worded could lead people to think that there was a circumstance where it would use the shell.
resolves #1208
antquinonez/doc,stmuk/doc,MasterDuke17/doc,stmuk/doc,dmaestro/doc,jonathanstowe/doc,stmuk/doc,stmuk/doc,dmaestro/doc,jonathanstowe/doc,perl6/doc,jonathanstowe/doc,dmaestro/doc,stmuk/doc,tbrowder/doc,MasterDuke17/doc,antquinonez/doc,gfldex/doc,gfldex/doc,MasterDuke17/doc,antquinonez/doc,jonathanstowe/doc,antquinonez/doc,perl6/doc,tbrowder/doc,perl6/doc,perl6/doc,jonathanstowe/doc,dmaestro/doc,perl6/doc,tbrowder/doc,gfldex/doc,MasterDuke17/doc,tbrowder/doc,gfldex/doc,gfldex/doc,antquinonez/doc,dmaestro/doc