sdl12-compat: Remove duplicated semicolon and typo in SDL12_compat.c

SDL Commits
1 
From a10d6b68efdc67cfb303536ca0bb42e4bfdff665 Mon Sep 17 00:00:00 2001
From: Daniel Gibson <[EMAIL REDACTED]>
Date: Mon, 8 Nov 2021 00:58:19 +0100
Subject: [PATCH] Remove duplicated semicolon and typo in SDL12_compat.c

---
 src/SDL12_compat.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/SDL12_compat.c b/src/SDL12_compat.c
index fde1a4d..a550b29 100644
--- a/src/SDL12_compat.c
+++ b/src/SDL12_compat.c
@@ -2654,7 +2654,7 @@ Keysym20to12(const SDL_Keycode keysym20)
     CASEKEYSYM20TO12(LALT);
     CASEKEYSYM20TO12(MODE);
     CASEKEYSYM20TO12(HELP);
-    CASEKEYSYM20TO12(SYSREQ);;
+    CASEKEYSYM20TO12(SYSREQ);
     CASEKEYSYM20TO12(MENU);
     CASEKEYSYM20TO12(POWER);
     CASEKEYSYM20TO12(UNDO);
@@ -2671,7 +2671,7 @@ Keysym20to12(const SDL_Keycode keysym20)
      * So I'm using that as a reference for our mappings, which only use
      * the lowest byte of the XK_* value, because of X11_KeySym & 0xFF in SDL1.2
      *
-     * case UTC4_code: return (SDL12Key)lowest_byte_of_corresponding_X11_KeySym; */
+     * case UCS4_code: return (SDL12Key)lowest_byte_of_corresponding_X11_KeySym; */
 
     /* Latin-2 */
     case 0x0104: return (SDL12Key)0xa1;