[Bug 1767801] Re: Wrong group name "admin" instead of "adm" in default sudoers file of sudo 1.8.21p2-3ubuntu1

[bhs]

I see same problem in ubuntu 16.04.

The adm group was added on 11.10 & admin group existed till 12.04
(https://askubuntu.com/questions/612751/what-is-the-difference-between-
the-groups-adm-and-admin). So, going forward since 12.10, admin group is
no more but replaced by adm group.

In the context of keeping intended feature (i.e. Members of the admin
group may gain root privileges), the fix to update "admin" to "adm"
looks correct to me.

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Title:
  Wrong group name "admin" instead of "adm" in default sudoers file of
  sudo 1.8.21p2-3ubuntu1

Status in sudo package in Ubuntu:
  Confirmed

Bug description:
  This is just to inform you, that the file /etc/sudoers, that comes
  with sudo 1.8.21p2-3ubuntu1 during a fresh install of Xubuntu 18.04,
  contains

  # Members of the admin group may gain root privileges
  %admin    ALL=(ALL) ALL

  but the admin group is now named "adm" instead of "admin".
  This is easy to correct, but it might confuse people, that are not familiar with the sudoers file. So, I suggest to change this line to

  %adm ...

  
  Additional information:
  lsb_release -rd
  Description:	Ubuntu 18.04 LTS
  Release:	18.04

  
  apt-cache policy sudo
  sudo:
    Installiert:           1.8.21p2-3ubuntu1
    Installationskandidat: 1.8.21p2-3ubuntu1
    Versionstabelle:
   *** 1.8.21p2-3ubuntu1 500
          500 http://at.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
          100 /var/lib/dpkg/status

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