K 10 svn:author V 6 daichi K 8 svn:date V 27 2007-10-14T13:55:38.000000Z K 7 svn:log V 429 Added whiteout behavior option. ``-o whiteout=always'' is default mode (it is established practice) and ``-o whiteout=whenneeded'' is less disk-space using mode especially for resource restricted environments like embedded environments. (Contributed by Ed Schouten. Thanks) Submitted by: Masanori Ozawa (unionfs developer) Reviewed by: jeff, kensmith Approved by: re (kensmith) MFC after: 1 week END