docs/70943: remove -k from gdb.1 manual

[Jun]

>Number:         70943
>Category:       docs
>Synopsis:       remove -k from gdb.1 manual
>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:   Wed Aug 25 15:00:40 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Jun
>Release:        Freebsd 6-Current
>Organization:
>Environment:
gdb -k is removed after kgdb is in tree. Need update the man page for this.
>Description:
      
>How-To-Repeat:
      
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: