Document the fact that logger is POSIX.2 compliant.

usr.bin/logger/logger.1

@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"	from: @(#)logger.1	6.8 (Berkeley) 7/27/91
-.\"	$Id: logger.1,v 1.2 1993/08/01 07:31:34 mycroft Exp $
+.\"	$Id: logger.1,v 1.3 1993/08/28 04:57:17 jtc Exp $
 .\"
 .Dd July 27, 1991
 .Dt LOGGER 1
@@ -96,6 +96,5 @@ logger \-p local0.notice \-t HOSTIDM \-f /dev/idmc
 .Sh STANDARDS
 The
 .Nm logger
-command is expected to be
-.St -p1003.2
-compatible.
+utility conforms to
+.St -p1003.2-92 .