docs/77043: Various system call man pages say nothing about immutable or un-unlinkable files

[Guy Harris]

>Number:         77043
>Category:       docs
>Synopsis:       Various system call man pages say nothing about immutable or un-unlinkable files
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Feb 03 01:50:11 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Guy Harris
>Release:        6.0-current
>Organization:
>Environment:
(Well, I'm not using it, I'm using the FreeBSD Hypertext Man Pages to check the man page)
>Description:
The unlink(2) man page doesn't list an attempt to remove an immutable or non-unlinkable file as causing EPERM to be returned as an error.  Other man pages also don't list it, either.
>How-To-Repeat:
      
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: