Bug#864920: openssh-client: please make FingerprintHash support an "all" option

[Russell Coker <russell@coker.com.au>]

Package: openssh-client
Version: 1:7.4p1-11
Severity: normal

Some sites provide a md5 fingerprint of host keys and some provide sha256.
As the FingerprintHash is only used rarely (the first time you connect to a
server) there is no downside to providing a second line of output.

Please make it possible to configure ssh_config to display all used hashes of
a key and also please consider making it the default.

-- System Information:
Debian Release: 9.0
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages openssh-client depends on:
ii  adduser           3.115
ii  dpkg              1.18.24
ii  libc6             2.24-11
ii  libedit2          3.1-20160903-3
ii  libgssapi-krb5-2  1.15-1
ii  libselinux1       2.6-3+b1
ii  libssl1.0.2       1.0.2l-2
ii  passwd            1:4.4-4.1
ii  zlib1g            1:1.2.8.dfsg-5

Versions of packages openssh-client recommends:
ii  xauth  1:1.0.9-1+b2

Versions of packages openssh-client suggests:
pn  keychain      <none>
pn  libpam-ssh    <none>
pn  monkeysphere  <none>
pn  ssh-askpass   <none>

-- Configuration Files:
/etc/ssh/ssh_config changed [not included]

-- no debconf information