SDL: testcustomcursor: set the hotspot to the middle of the cross

SDL Commits
1 
From 0e351efbbc5381f61cad2f4b8e6b2d013cafa5a1 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Mon, 20 Oct 2025 09:47:26 -0700
Subject: [PATCH] testcustomcursor: set the hotspot to the middle of the cross

---
 test/testcustomcursor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/testcustomcursor.c b/test/testcustomcursor.c
index e88f40e559df9..b3ac20bfdfc63 100644
--- a/test/testcustomcursor.c
+++ b/test/testcustomcursor.c
@@ -106,7 +106,7 @@ static const char *cross[] = {
     "                                ",
     "                                ",
     "                                ",
-    "0,0"
+    "16,16"
 };
 
 static SDL_Surface *load_image_file(const char *file)