misc/164803: Unclear manual page for mount_unionfs(8)

[Twoje Radio]

>Number:         164803
>Category:       misc
>Synopsis:       Unclear manual page for mount_unionfs(8)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb 05 18:10:06 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Twoje Radio
>Release:        
>Organization:
>Environment:
>Description:
http://www.freebsd.org/cgi/man.cgi?query=mount_unionfs&apropos=0&sektion=0&manpath=FreeBSD+9.0-RELEASE&arch=default&format=html

"The traditional mode uses the same way as the old unionfs for backward compatibility"
This text appears before any other mention about the way unionfs works. I think that majority of people reading this would like to know *what* does the option do first and historic reason later, if at all.
>How-To-Repeat:

>Fix:


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