add "lp -s" switch, from darcy@druid.net in pr#5713. document "lp -s" and "lp -o"

usr.sbin/lpr/lp/lp

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-#	$NetBSD: lp,v 1.2 1997/10/05 12:48:36 mrg Exp $
+#	$NetBSD: lp,v 1.3 1998/07/07 02:01:37 mrg Exp $
 #
 # Copyright (c) 1995 Joerg Wunsch
 #
@@ -50,12 +50,14 @@ dest=${LPDEST:-${PRINTER:-lp}}
 # XXX We include the -o flag as a dummy.  Posix 1003.2 does not require
 # it, but the rationale mentions it as a possible future extension.
 #
-while getopts "cd:n:o:" option
+while getopts "cd:n:o:s" option
 do
 	case $option in
 
 	c)			# copy files before printing
 		symlink="";;
+	s)			# symlink files (SVR4 compatibility)
+		symlink="-s";;
 	d)			# destination
 		dest="${OPTARG}";;
 	n)			# number of copies

usr.sbin/lpr/lp/lp.1

@@ -1,4 +1,4 @@
-.\"	$NetBSD: lp.1,v 1.2 1997/10/05 12:48:37 mrg Exp $
+.\"	$NetBSD: lp.1,v 1.3 1998/07/07 02:01:37 mrg Exp $
 .\"
 .\" Copyright (c) 1995 Joerg Wunsch
 .\"
@@ -42,7 +42,8 @@
 .Nd front-end to the print spooler
 .Sh SYNOPSIS
 .Nm lp
-.Op Fl c
+.Op Fl cs
+.Op Fl o Ar option
 .Op Fl d Ar printer
 .Op Fl n Ar num
 .Op Ar name ...
@@ -53,7 +54,6 @@ is a front-end to the print spooler as required by the
 specification.  It effectively invokes
 .Xr lpr 1
 with the proper set of arguments.
-
 It generally prints the named files on the destination printer.
 .Pp
 The following options are available:
@@ -78,6 +78,12 @@ are taken as the destination printer.
 Specify that
 .Ar num
 copies of each of the named files shall be printed.
+.It Fl s
+Use symlinks rather than copying the file.  This is the default and is
+provided as a compatibility option for SVR4.
+.It Fl o
+Printer specific options.  Not supported, provided only as a compatibility
+option for SVR4.
 .El
 .Sh ENVIRONMENT
 As described above, the variables