e2fsck: fix merge error in "clear uninit flag on directory extents"

e2fsck: fix merge error in "clear uninit flag on directory extents"

In the original patch (against -next), the hunk to fix uninit dirs was
just prior to the hunk labelled "Corrupt but passes checks?".  The
hunks are ordered this way so that if e2fsck obtains permission to fix
a failed-csum extent (which in turn fixes the checksum), it will not
subsequently ask to (re)fix the checksum.

Due to a merge error the hunk moved to the wrong place, so put it
back.

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