pie: Support %p printing

The restorer prints pointer addresses in error codes
Reported-by: Artem Kuzmitskiy <artem.kuzmitskiy@gmail.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

pie/log-simple.c

@@ -243,6 +243,9 @@ void sbuf_printf(struct simple_buf *b, const char *format, va_list args)
 			else
 				print_hex(va_arg(args, unsigned int), b);
 			break;
+		case 'p':
+			print_hex_l((unsigned long)va_arg(args, void *), b);
+			break;
 		default:
 			print_string("UNKNOWN FORMAT ", b);
 			sbuf_putc(b, *s);