problem.c: Add PR_3_NO_DIRINFO error code.
super.c (check_super_value): Rename min and max to min_val and max_val
to avoid possible cpp macro conflicts.
pass4.c (e2fsck_pass4): Rename max to maxgroup, to avoid possible cpp
macro conflicts.
pass3.c (e2fsck_pass3): Rename max to maxdirs, to avoid possible cpp
macro conflicts.
(check_directory): Fix logic to avoid possible core dump in the
case of ext2fs_get_dir_info returning NULL. (By the time we get here,
it should never happen, but...). Also simply/streamline the control
flow of the function.
7f813ba337