tail: adjust misleading indentation in macro. NFC.

usr.bin/tail/tail.c

@@ -40,7 +40,7 @@ __COPYRIGHT("@(#) Copyright (c) 1991, 1993\
 #if 0
 static char sccsid[] = "@(#)tail.c	8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: tail.c,v 1.20 2018/03/06 03:33:26 eadler Exp $");
+__RCSID("$NetBSD: tail.c,v 1.21 2023/08/07 19:11:25 tnn Exp $");
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -94,7 +94,7 @@ main(int argc, char *argv[])
 	case '+':							\
 		if (off)						\
 			off -= (units);					\
-			style = (forward);				\
+		style = (forward);					\
 		break;							\
 	case '-':							\
 		off = -off;						\