e2fsck: enable extents on all 64bit filesystems

Since it's impossible to address all blocks of a 64bit filesystem
without extents, have e2fsck turn on the feature if it finds (64bit &&
!extents).

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
3 files changed