ChangeLog, fsck.c, mke2fs.c:

ChangeLog, fsck.c, mke2fs.c:
  fsck.c (fsck_device): Print an error message if the user passes in a
  	device or directory name which isn't found in /etc/fstab.  Allow the
  	location of /etc/fstab to be overridden by the FSTAB_FILE environment
  	variable.
  mke2fs.c (write_inode_tables): Add kludge code so that when the
  	MKE2FS_SYNC environment variable is set, mke2fs will sync every
  	MKE2FS_SYNC block groups, while it is writing out the inode tables.
  	This is to work around a VM bug in the 2.0 kernel.  I've heard a
  	report that a RAID user was able to trigger it even using a 2.2
  	kernel.