- sync to fcoo_pri changes.
- sync to fcoo_pri changes.

- flag an APPEND flag when files are opened in APPEND.  this will be
  used when sending WRITEs to sliod to signify that O_APPEND writes
  should be moved to EOF.


git-svn-id: ae92b08b608af1c8cefa3e10d2325ea527204e07@10460 3eda493b-6a19-0410-b2e0-ec8ea4dd8fda

pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable