sync with OpenBSD -current

share/man/man4/ppp.4

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ppp.4,v 1.16 2015/07/28 14:31:50 sthen Exp $
+.\"	$OpenBSD: ppp.4,v 1.17 2024/02/28 16:08:34 denis Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     From:	@(#)lo.4	8.1 (Berkeley) 6/5/93
 .\"
-.Dd $Mdocdate: July 28 2015 $
+.Dd $Mdocdate: February 28 2024 $
 .Dt PPP 4
 .Os
 .Sh NAME
@@ -80,11 +80,3 @@ The
 .Nm
 device appeared in
 .Ox 1.2 .
-.Sh BUGS
-Currently, only the
-.Xr ip 4
-protocol is supported by this device.
-Note that the
-.Xr pppoe 4
-device does support
-.Xr ip6 4 .