SDL: Sync SDL3 wiki -> header (365db)

From 365dba6de84ca7bdac114b0639774ef167ce9c9d Mon Sep 17 00:00:00 2001
From: SDL Wiki Bot <[EMAIL REDACTED]>
Date: Sat, 12 Oct 2024 15:08:54 +0000
Subject: [PATCH] Sync SDL3 wiki -> header

[ci skip]
---
 include/SDL3/SDL_stdinc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/SDL3/SDL_stdinc.h b/include/SDL3/SDL_stdinc.h
index 59d4c2dd41978..28b0147d95154 100644
--- a/include/SDL3/SDL_stdinc.h
+++ b/include/SDL3/SDL_stdinc.h
@@ -2535,8 +2535,8 @@ extern SDL_DECLSPEC Uint32 SDLCALL SDL_StepUTF8(const char **pstr, size_t *pslen
  * This will go to the start of the previous Unicode codepoint in the string,
  * move `*pstr` to that location and return that codepoint.
  *
- * If the resulting codepoint is zero (already at the start of the string), it
- * will not advance `*pstr` at all.
+ * If `*pstr` is already at the start of the string), it will not advance
+ * `*pstr` at all.
  *
  * Generally this function is called in a loop until it returns zero,
  * adjusting its parameter each iteration.