s3-mdssvc: add a comment to mds_init()

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Noel Power <npower@samba.org>
23 jobs for slow-tevent-glib-glue in 58 minutes and 51 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #187080855
docker shared
ctdb

00:46:14

passed #187080837
docker shared
others

00:12:50

passed #187080838
docker shared
samba

00:31:39

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docker private
samba-ad-dc-1

00:38:06

passed #187080847
docker shared
samba-ad-dc-2

00:54:40

passed #187080848
docker shared
samba-ad-dc-3

00:42:53

passed #187080849
docker shared
samba-ad-dc-4

00:49:55

passed #187080850
docker shared
samba-ad-dc-5

00:43:17

passed #187080851
docker shared
samba-ad-dc-6

00:38:55

passed #187080852
docker shared
samba-ad-dc-backup

00:48:09

passed #187080857
docker shared
samba-ad-dc-ntvfs

00:42:54

passed #187080846
docker shared
samba-ad-member

00:28:29

passed #187080856
docker shared
samba-ctdb

00:29:56

passed #187080858
docker private
samba-fileserver

00:28:50

passed #187080853
docker shared
samba-libs

00:44:48

passed #187080839
docker shared
samba-none-env

00:58:44

passed #187080840
docker shared
samba-nopython

00:43:13

passed #187080841
docker shared
samba-nopython-py2

00:54:22

passed #187080860
docker private
samba-nt4

00:52:37

passed #187080844
docker shared
samba-o3

00:37:26

passed #187080854
docker shared
samba-static

00:56:33

passed #187080842
docker shared
samba-systemkrb5

00:22:06

passed #187080843
docker shared
samba-xc

00:05:59