gistfile1.txt

// argsMinusFirstX removes only the first x from args.  Otherwise, commands that look like
// openshift admin policy add-role-to-user admin my-user, lose the admin argument (arg[4]).
func argsMinusFirstX(args []string, x string) []string {
	for i, y := range args {
		if x == y {
			return append(args[:i], args[i+1:]...)
		}
	}
	return args
}


(stolen from https://github.com/golang/go/wiki/SliceTricks)