Sync SDL3 wiki -> header

include/SDL3/SDL_stdinc.h

@@ -662,8 +662,8 @@ extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
                                          size_t * outbytesleft);
 
 /**
- * This function converts a buffer or string between encodings in one pass, returning a
- * string that must be freed with SDL_free() or NULL on error.
+ * This function converts a buffer or string between encodings in one pass,
+ * returning a string that must be freed with SDL_free() or NULL on error.
  *
  * \since This function is available since SDL 3.0.0.
  */