ChangeLog, e2fsck.h, pass1.c, pass2.c, pass3.c, problem.c, problem.h, util.c:

ChangeLog, e2fsck.h, pass1.c, pass2.c, pass3.c, problem.c, problem.h, util.c:
  pass1.c (e2fsck_pass1): If the filesystem does not support imagic
  	inodes, if an inode has the imagic flag set, offer to clear the imagic
  	flag.  If a valid device/fifo/socket has the immutable flag set, call
  	the new helper function check_immutable() to offerto clear the
  	immutable flag.
  pass2.c (check_filetype): Use the new ext2_file_type() helper function
  	instead of calculating the file_type information manually.
  pass3.c (e2fsck_reconnect_file): When adding a link to lost+found,
  	calculate the filetype information so that ext2fs_link() can use the
  	information if applicable.  (get_lost_and_found): Create the
  	/lost+found directory with the correct filetype information if
  	applicable.
  util.c (ext2_file_type), e2fsck.h: New function which returns the
  	directory entry file type information given the inode's mode bits.
  problem.c, problem.h: Added new problem codes PR_1_SET_IMAGIC and
  	PR_1_SET_IMMUTABLE.
ChangeLog, mke2fs.8.in:
  mke2fs.8.in: Update manual page so that the sparse_option filesystem
  	option is properly named.