[Bug 1750031] [NEW] scary/unexpected output in adduser and deluser

[Scott Moser]

Public bug reported:

adduser and deluser are now printing to stderr 'sent invalidate(passwd)' and
'sent invalidate(group)'.

These are confusing at best and new in bionic.
See below. They do not seem harmful, but not wonderful.


smoser at ubuntu1:~$ sudo adduser guest
Adding user `guest' ...
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
Adding new group `guest' (1001) ...
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
Adding new user `guest' (1001) with group `guest' ...
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
The home directory `/home/guest' already exists.  Not copying from `/etc/skel'.
Enter new UNIX password: 
Retype new UNIX password: 
passwd: password updated successfully
Changing the user information for guest
Enter the new value, or press ENTER for the default
        Full Name []: Foo Bar
        Room Number []: 
        Work Phone []: 
        Home Phone []: 
        Other []: 
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
Is the information correct? [Y/n] 
smoser at ubuntu1:~$ sudo deluser guest
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
Removing user `guest' ...
Warning: group `guest' has no more members.
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
Done.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: adduser 3.113+nmu3ubuntu4
ProcVersionSignature: User Name 4.13.0-1007.9-azure 4.13.13
Uname: Linux 4.13.0-1007-azure x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
Date: Fri Feb 16 19:30:12 2018
PackageArchitecture: all
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: adduser
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: adduser (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug uec-images xenial

** Changed in: adduser (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1750031

Title:
  scary/unexpected output in adduser and deluser

Status in adduser package in Ubuntu:
  Confirmed

Bug description:
  adduser and deluser are now printing to stderr 'sent invalidate(passwd)' and
  'sent invalidate(group)'.

  These are confusing at best and new in bionic.
  See below. They do not seem harmful, but not wonderful.

  
  smoser at ubuntu1:~$ sudo adduser guest
  Adding user `guest' ...
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  Adding new group `guest' (1001) ...
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  sent invalidate(group) request, exiting
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  Adding new user `guest' (1001) with group `guest' ...
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  The home directory `/home/guest' already exists.  Not copying from `/etc/skel'.
  Enter new UNIX password: 
  Retype new UNIX password: 
  passwd: password updated successfully
  Changing the user information for guest
  Enter the new value, or press ENTER for the default
          Full Name []: Foo Bar
          Room Number []: 
          Work Phone []: 
          Home Phone []: 
          Other []: 
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  sent invalidate(passwd) request, exiting
  Is the information correct? [Y/n] 
  smoser at ubuntu1:~$ sudo deluser guest
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  Removing user `guest' ...
  Warning: group `guest' has no more members.
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  sent invalidate(passwd) request, exiting
  sent invalidate(group) request, exiting
  Done.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: adduser 3.113+nmu3ubuntu4
  ProcVersionSignature: User Name 4.13.0-1007.9-azure 4.13.13
  Uname: Linux 4.13.0-1007-azure x86_64
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  Date: Fri Feb 16 19:30:12 2018
  PackageArchitecture: all
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: adduser
  UpgradeStatus: No upgrade log present (probably fresh install)

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