[Bug 1056462] [NEW] The '--print' option to ceph-authtool is incorrect

[Andrew Glen-Young]

Public bug reported:

Running `ceph-authtool keyringfile --print` throws an error claiming
that it does not know the option however, the help indicates that this
is the valid long-option for '-p'.

Looking at the source code, the command expects '--print-key' and using
this works as expected.

Either the help is incorrect or the '--print-key' option is incorrect.

How to reproduce:

    $ ceph-authtool --help
    no command specified
    usage: ceph-authtool keyringfile [OPTIONS]...
    where the options are:
      -l, --list                    will list all keys and capabilities present in
                                    the keyring
      -p, --print                   will print an encoded key for the specified
                                    entityname. This is suitable for the
                                    'mount -o secret=..' argument
    [...]


    $ ceph-authtool /etc/ceph/keyring --print
    ceph-authtool: unexpected '--print'
    [...]


    $ ceph-authtool /etc/ceph/keyring -p
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX==

    $ ceph-authtool /etc/ceph/keyring --print-key
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX==

See the trivial patch attached.

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

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https://bugs.launchpad.net/bugs/1056462

Title:
  The '--print' option to ceph-authtool is incorrect

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