SDL: Also ignore "build-*/" sub-directories

From 8e0b47331f33ec378a3375d50e230d1ec34b27b2 Mon Sep 17 00:00:00 2001
From: Wohlstand <[EMAIL REDACTED]>
Date: Wed, 31 May 2023 03:38:25 +0300
Subject: [PATCH] Also ignore "build-*/" sub-directories

Locally, I do make multiple build directories for various purposes, like "build-debug", "build-release", "build-novideo", etc. Also, Qt Creator (if configure it) may automatically create build directories that always starts with a "build-*" prefix.
---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index e8f90c51b637..c43896b9cb01 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 build/
+build-*/
 buildbot/
 /VERSION.txt
 __pycache__