From 1afc4bb76890e24266aca5d86c2c083ac3666adf Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 30 Oct 2025 18:18:22 +0100
Subject: [PATCH] tool/var: explain how the null termination byte is there

Closes #19287
---
 src/var.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/var.c b/src/var.c
index 87f33af282..94d79695ac 100644
--- a/src/var.c
+++ b/src/var.c
@@ -362,6 +362,7 @@ static ParameterError addvariable(const char *name,
   p = calloc(1, sizeof(struct tool_var) + nlen);
   if(p) {
     memcpy(p->name, name, nlen);
+    /* the null termination byte is already present from above */
 
     p->content = contalloc ? content : memdup0(content, clen);
     if(p->content) {
-- 
2.47.3