Log Message:
samba4: updated to 4.9.4

Release Notes for Samba 4.9.4

Major bug fixes include:
   o dns: Fix CNAME loop prevention using counter regression.

Changes since 4.9.3:
   * BUG 9175: libcli/smb: Don't overwrite status code.
   * BUG 12164: wbinfo --group-info 'NT AUTHORITY\System' does not work.
   * BUG 13661: Session setup reauth fails to sign response.
   * BUG 13677: vfs_fruit: Validation of writes on AFP_AfpInfo stream.
   * BUG 13688: vfs_shadow_copy2: Nicely deal with attempts to open previous
     version for writing.
   * BUG 13455: Restoring previous version of stream with vfs_shadow_copy2 fails
     with NT_STATUS_OBJECT_NAME_INVALID fsp->base_fsp->fsp_name.
   * BUG 13571: CVE-2018-16853: Fix S4U2Self crash with MIT KDC build.
   * BUG 13708: s3-vfs: Prevent NULL pointer dereference in vfs_glusterfs.
   * PEP8: fix E231: missing whitespace after ','.
   * BUG 13629: winbindd: Fix crash when taking profiles.
   * BUG 13600: CVE-2018-14629 dns: Fix CNAME loop prevention using counter
     regression.
   * BUG 13686: 'samba-tool user syscpasswords' fails on a domain with many DCs.
   * BUG 13571: CVE-2018-16853: Do not segfault if client is not set.
   * BUG 13679: lib:util: Fix DEBUGCLASS pointer initializiation.
   * BUG 13696: ctdb-daemon: Exit with error if a database directory does not
     exist.
   * BUG 13498: s3:libads: Add net ads leave keep-account option.