Revert "Nice little filegroup fix for empty argument lists"
Revert "Nice little filegroup fix for empty argument lists"

This reverts commit e76113ab39008c5d81c60df201177f3d0088adbb.

Is broken on OSX because their xargs doesn't have -r :( I have another approach planned for this soon though.

thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please