misc/48191: rcsfile(5)'s diagram is not shown by NetBSD current's man(1)

[ryoon%NetBSD.org@localhost]

>Number:         48191
>Category:       misc
>Synopsis:       rcsfile(5)'s diagram is not shown by NetBSD current's man(1)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Sep 08 02:30:00 +0000 2013
>Originator:     Ryo ONODERA
>Release:        NetBSD 6.99.23
>Organization:
        
>Environment:
        
        
System: NetBSD tellurium.elements.tetera.org 6.99.23 NetBSD 6.99.23 (DTRACE) 
#4: Tue Sep 3 09:25:35 JST 2013 
ryo_on%tellurium.elements.tetera.org@localhost:/usr/obj/amd64/sys/arch/amd64/compile/DTRACE
 amd64
Architecture: x86_64
Machine: amd64
>Description:
man page of rcsfile(4) has diagram of RCS file's organization,
but at least with NetBSD/amd64 6.99.23's man(1), the diagram is
not displayed.

The diagram should be displayed like the following URL's html man page.
http://www.daemon-systems.org/man/rcsfile.5.html

        
>How-To-Repeat:
$ man 4 rcsfile
        
>Fix:
        
I have no idea.

>Unformatted: