xfstests: count journal size in test 289

xfstests: count journal size in test 289

Test 289 ignored the fact that historically journal is not accounted as
fs overhead in ext3. For larger filesystems it is hidden in 1% tolerance
but for filesystems smaller than 12G the test fails. So make the
counting precise to work everywhere.

CC: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
[rjohnston@sgi.com: add lower case units to filter]
Signed-off-by: Rich Johnston <rjohnston@sgi.com>