lib/object-mask.js
function sanitizeFalsies(obj) {
	var key;
	if (!obj._) {
		delete obj._;
		for (key in obj) {
			if (obj[key] === false) delete obj[key];
		}
	}
	return obj;
}
function sanitizeFalsies(obj) {
	var key;
	if (!obj._) {
		delete obj._;
		for (key in obj) {
			if (obj[key] === false) delete obj[key];
		}
	}
	return obj;
}
function sanitizeFalsies ( obj ) { var key ; if ( ! obj . _ ) { delete obj . _ ; for ( key in obj ) { if ( obj [ key ] === false ) delete obj [ key ] ; } } return obj ; }
shallowly removes falsey keys if obj does not have a wildcard
shallowly removes falsey keys if obj does not have a wildcard