SDL: Fix testnative C90 compatibility

From 9e3783996b67cf4603f44199d6819fb72197d1dd Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Fri, 1 Aug 2025 02:27:54 +0200
Subject: [PATCH] Fix testnative C90 compatibility

---
 test/testnative.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/testnative.h b/test/testnative.h
index bb90e2c959f01..e7cb3b63c5e10 100644
--- a/test/testnative.h
+++ b/test/testnative.h
@@ -48,4 +48,4 @@ extern NativeWindowFactory X11WindowFactory;
 extern NativeWindowFactory CocoaWindowFactory;
 #endif
 
-#endif // testnative_h_
+#endif /* testnative_h_ */