bin/19635: add -c for grand total to df(1), like du(1) does

[David E. O'Brien]

Synopsis: add -c for grand total to df(1), like du(1) does

State-Changed-From-To: open->closed
State-Changed-By: obrien
State-Changed-When: Sun Apr 18 13:56:46 PDT 2004
State-Changed-Why: 


http://www.freebsd.org/cgi/query-pr.cgi?pr=19635