SDL: Clarified that the contents of new textures aren't defined.

SDL Commits
1 
From 7df1caba7cf5d7659f901614c8bd059d1fe84990 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sun, 8 Sep 2024 07:22:52 -0700
Subject: [PATCH] Clarified that the contents of new textures aren't defined.

---
 include/SDL3/SDL_render.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/SDL3/SDL_render.h b/include/SDL3/SDL_render.h
index 66d943cb06a5e..957c19ef60e04 100644
--- a/include/SDL3/SDL_render.h
+++ b/include/SDL3/SDL_render.h
@@ -479,6 +479,8 @@ extern SDL_DECLSPEC SDL_bool SDLCALL SDL_GetCurrentRenderOutputSize(SDL_Renderer
 /**
  * Create a texture for a rendering context.
  *
+ * The contents of a texture when first created are not defined.
+ *
  * \param renderer the rendering context.
  * \param format one of the enumerated values in SDL_PixelFormat.
  * \param access one of the enumerated values in SDL_TextureAccess.