Update major version.

Now libutil depends on libc.so.4, so needs to update the major version.
    Without this, old binaries which use libutil and build with libc.so.3
    will coredump on recent 4.0.

Solicited comment for cvs-committers and there seems to be no objection.

Approved by: jkh

lib/libutil/Makefile

@@ -2,8 +2,8 @@
 #	$FreeBSD$
 
 LIB=	util
-SHLIB_MAJOR= 2
-SHLIB_MINOR= 2
+SHLIB_MAJOR= 3
+SHLIB_MINOR= 0
 CFLAGS+=-Wall -DLIBC_SCCS -I${.CURDIR} -I${.CURDIR}/../../sys
 CFLAGS+=-DINET6
 SRCS=	login.c login_tty.c logout.c logwtmp.c pty.c setproctitle.c \