docs/178077: Correct description of -webnfs in mountd/exports.5

[Andrey Simonenko]

>Number:         178077
>Category:       docs
>Synopsis:       Correct description of -webnfs in mountd/exports.5
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Apr 23 10:40:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Andrey Simonenko
>Release:        FreeBSD 10-CURRENT amd64
>Organization:
>Environment:
>Description:

The exports(5) manual page has mistake in the -webnfs option's description.
It specifies that the -webnfs option implies -mapall=nobody, but actually
it implies -mapall=-2:-2.

>How-To-Repeat:

Specify -webnfs for some NFS exported file system, mount it via NFS
and create some file in it, then verify IDs of this file.

>Fix:
--- exports.5.orig	2012-12-26 13:16:51.000000000 +0200
+++ exports.5	2013-04-23 13:27:48.000000000 +0300
@@ -212,7 +212,7 @@
 flag, which implies
 .Fl public ,
 .Sm off
-.Fl mapall No = Sy nobody
+.Fl mapall No = Sy -2:-2
 .Sm on
 and
 .Fl ro .

>Release-Note:
>Audit-Trail:
>Unformatted: