Fixed: when a captured proc whose return type doesn't matter, make the fun literal return void, not the inferred type

Support backlash followed by newline in strings. Subquent whitespace is ignored. That way you can build a long string by splitting it into multiple lines in the code without worrying about extra whitespace being inserted in the string.

A splat in a macro expression is the same as invoking argify (shorter and more consistent with everything else)

Typo fixed in spec comments

Simple Dir::glob/Dir::[] and Dir::entries