scalar-unregister: handle error codes greater than 0

When 'scalar unregister' tries to disable maintenance and remove an
enlistment, ensure that the return value is nonzero if either operation
produces *any* nonzero return value, not just when they return a value less
than 0.

Signed-off-by: Victoria Dye <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: vdye

contrib/scalar/scalar.c

@@ -223,10 +223,10 @@ static int unregister_dir(void)
 {
 	int res = 0;
 
-	if (toggle_maintenance(0) < 0)
+	if (toggle_maintenance(0))
 		res = -1;
 
-	if (add_or_remove_enlistment(0) < 0)
+	if (add_or_remove_enlistment(0))
 		res = -1;
 
 	return res;