standards/184641: Please add "i" flag to sed substitute ("s") command

[eadler at FreeBSD.org]

Synopsis: Please add "i" flag to sed substitute ("s") command

Responsible-Changed-From-To: freebsd-standards->eadler
Responsible-Changed-By: eadler
Responsible-Changed-When: Mon Dec 9 18:47:14 UTC 2013
Responsible-Changed-Why: 
I have been following the discussion and will handle the modification

http://www.freebsd.org/cgi/query-pr.cgi?pr=184641