sdl2-compat: SDL_FilterEvents: avoid pedantic warnings about struct initializer.

SDL Commits
1 
From 35be8ba178e6e281bafcfde817b98bec4ddf74b6 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Fri, 30 Dec 2022 00:40:28 +0300
Subject: [PATCH] SDL_FilterEvents: avoid pedantic warnings about struct
 initializer.

---
 src/sdl2_compat.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/sdl2_compat.c b/src/sdl2_compat.c
index 741d235..94d345e 100644
--- a/src/sdl2_compat.c
+++ b/src/sdl2_compat.c
@@ -1473,7 +1473,10 @@ EventFilterWrapper3to2(void *userdata, SDL_Event *event)
 DECLSPEC void SDLCALL
 SDL_FilterEvents(SDL2_EventFilter filter2, void *userdata)
 {
-    EventFilterWrapperData wrapperdata = { filter2, userdata, NULL };
+    EventFilterWrapperData wrapperdata;
+    wrapperdata.filter2 = filter2;
+    wrapperdata.userdata = userdata;
+    wrapperdata.next = NULL;
     SDL3_FilterEvents(EventFilterWrapper3to2, &wrapperdata);
 }