SDL: Change octal char literals to hex char literals

SDL Commits
1 
From 2f5beac190dec5bbfb266d9a2fa46661304bbbbe Mon Sep 17 00:00:00 2001
From: Lokathor <[EMAIL REDACTED]>
Date: Fri, 5 Mar 2021 13:15:52 -0700
Subject: [PATCH] Change octal char literals to hex char literals

This should not change anything at all within the compiled library, but it does make the header file easier to read for non-C programmers who don't expect an octal value.
---
 include/SDL_keycode.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/SDL_keycode.h b/include/SDL_keycode.h
index 7c385897e..c0438bd42 100644
--- a/include/SDL_keycode.h
+++ b/include/SDL_keycode.h
@@ -52,7 +52,7 @@ typedef enum
     SDLK_UNKNOWN = 0,
 
     SDLK_RETURN = '\r',
-    SDLK_ESCAPE = '\033',
+    SDLK_ESCAPE = '\x1B',
     SDLK_BACKSPACE = '\b',
     SDLK_TAB = '\t',
     SDLK_SPACE = ' ',
@@ -147,7 +147,7 @@ typedef enum
     SDLK_INSERT = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_INSERT),
     SDLK_HOME = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_HOME),
     SDLK_PAGEUP = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_PAGEUP),
-    SDLK_DELETE = '\177',
+    SDLK_DELETE = '\x1F',
     SDLK_END = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_END),
     SDLK_PAGEDOWN = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_PAGEDOWN),
     SDLK_RIGHT = SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_RIGHT),