udf: Export superblock magic to userspace

Currently UDF superblock magic doesn't appear in any userspace header
files and thus userspace apps have hard time checking for this fs. Let's
export the magic to userspace as with any other filesystem.

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2016-04-28 10:40:09 +02:00
commit 2a28900be2
2 changed files with 3 additions and 3 deletions