From 75295c11e8ded92ab4bbb2dbe372dbf72f40faee Mon Sep 17 00:00:00 2001
From: Dylan Araps <dylan.araps@gmail.com>
Date: Mon, 19 Jul 2021 11:42:13 +0300
Subject: [PATCH] misc: nit

---
 kiss | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/kiss b/kiss
index 58e2a7b..0d0c27d 100755
--- a/kiss
+++ b/kiss
@@ -52,12 +52,14 @@ equ() {
 
 ok() {
     # Check if a string is non-null.
-    # This replaces '[ "$var" ]', '[ -n "$var" ]' and '[ -z "$var" ]'.
+    # This replaces '[ "$var" ]', '[ -n "$var" ]'.
     case $1 in '') return 1 ;; *) return 0; esac
 }
 
 null() {
-    ! ok "$1"
+    # Check if a string is non-null.
+    # This replaces '[ -z "$var" ]'.
+    case $1 in '') return 0 ;; *) return 1; esac
 }
 
 tmp_file() {