[Bug 1643726] [NEW] Invalid option (-p), and man page for passwd does not contain -p option

[PaulSchulz]

Public bug reported:

When unlocking a user account (which doesn't have a password) with
'passwd' I get the message:

  passwd: unlocking the password would result in a passwordless account.
  You should set a password with usermod -p to unlock the password of this account.

The Man page for passwd does not describe the '-p' option.

If I try to use -p as an option,I get an unknown option error:

  passwd: invalid option -- 'p'
  Usage: passwd [options] [LOGIN]
  ...

This is in Ubuntu 16.04, source: shadow

Package: passwd
Priority: required
Section: admin
Installed-Size: 2363
Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
Original-Maintainer: Shadow package maintainers <pkg-shadow-devel at lists.alioth.debian.org>
Architecture: amd64
Source: shadow
Version: 1:4.2-3.1ubuntu5
Replaces: manpages-tr (<< 1.0.5), manpages-zh (<< 1.5.1-1)
Depends: libaudit1 (>= 1:2.2.1), libc6 (>= 2.14), libpam0g (>= 0.99.7.1), libselinux1 (>= 1.32), libsemanage1 (>= 2.0.3), lsb-base (>= 4.1+Debian11ubuntu7), libpam-modules, debianutils (>= 2.15.2)
Filename: pool/main/s/shadow/passwd_4.2-3.1ubuntu5_amd64.deb
Size: 779644
MD5sum: d63ef1119cfdf76850618732a0320841
SHA1: 6a53cced36ce2ef45f1ed5c23321736f1d5adcfd
SHA256: 8f1cf17e3d04044156d892db3dddb97cd6753c1d7d74aadd11ba2ddfd5ee2592
Description-en_AU: change and administer password and group data
 This package includes passwd, chsh, chfn, and many other programs to
 maintain password and group data.
 .
 Shadow passwords are supported.  See /usr/share/doc/passwd/README.Debian
Description-md5: 5bbd70e421ed3367a8299e53bd7afed4
Multi-Arch: foreign
Homepage: http://pkg-shadow.alioth.debian.org/
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Supported: 5y
Task: minimal

** Affects: shadow (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1643726

Title:
  Invalid option (-p),  and man page for passwd does not contain -p
  option

Status in shadow package in Ubuntu:
  New

Bug description:
  When unlocking a user account (which doesn't have a password) with
  'passwd' I get the message:

    passwd: unlocking the password would result in a passwordless account.
    You should set a password with usermod -p to unlock the password of this account.

  The Man page for passwd does not describe the '-p' option.

  If I try to use -p as an option,I get an unknown option error:

    passwd: invalid option -- 'p'
    Usage: passwd [options] [LOGIN]
    ...

  This is in Ubuntu 16.04, source: shadow

  Package: passwd
  Priority: required
  Section: admin
  Installed-Size: 2363
  Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
  Original-Maintainer: Shadow package maintainers <pkg-shadow-devel at lists.alioth.debian.org>
  Architecture: amd64
  Source: shadow
  Version: 1:4.2-3.1ubuntu5
  Replaces: manpages-tr (<< 1.0.5), manpages-zh (<< 1.5.1-1)
  Depends: libaudit1 (>= 1:2.2.1), libc6 (>= 2.14), libpam0g (>= 0.99.7.1), libselinux1 (>= 1.32), libsemanage1 (>= 2.0.3), lsb-base (>= 4.1+Debian11ubuntu7), libpam-modules, debianutils (>= 2.15.2)
  Filename: pool/main/s/shadow/passwd_4.2-3.1ubuntu5_amd64.deb
  Size: 779644
  MD5sum: d63ef1119cfdf76850618732a0320841
  SHA1: 6a53cced36ce2ef45f1ed5c23321736f1d5adcfd
  SHA256: 8f1cf17e3d04044156d892db3dddb97cd6753c1d7d74aadd11ba2ddfd5ee2592
  Description-en_AU: change and administer password and group data
   This package includes passwd, chsh, chfn, and many other programs to
   maintain password and group data.
   .
   Shadow passwords are supported.  See /usr/share/doc/passwd/README.Debian
  Description-md5: 5bbd70e421ed3367a8299e53bd7afed4
  Multi-Arch: foreign
  Homepage: http://pkg-shadow.alioth.debian.org/
  Bugs: https://bugs.launchpad.net/ubuntu/+filebug
  Origin: Ubuntu
  Supported: 5y
  Task: minimal

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