xP: produce a custom font for IRC formatting

Given that the generated file needs a manual adjustment,
its small size, and the dependencies involved,
it will be checked in to the repository.

xC.c

@@ -15025,6 +15025,7 @@ process_formatting_escape (const struct pollfd *fd, struct app_context *ctx)
 	case 'u':
 	case '_': CALL_ (ctx->input, insert, "\x1f"); break;
 	case 'v': CALL_ (ctx->input, insert, "\x16"); break;
+	case 'r':
 	case 'o': CALL_ (ctx->input, insert, "\x0f"); break;
 
 	default: