Bug#910406: ssh-add: ignores IdentityAgent configuration value

[Paul Wise]

Package: openssh-client
Version: 1:7.8p1-1
Severity: normal
File: /usr/bin/ssh-add

ssh-add appears to ignore the IdentityAgent configuration value and
only uses the SSH_AUTH_SOCK environment variable to determine which
agent to use. I wanted to make ssh-add use the GnuPG SSH agent.

$ ssh-add
Could not open a connection to your authentication agent.

-- System Information:
Debian Release: buster/sid
APT prefers testing-debug
APT policy: (900, 'testing-debug'), (900, 'testing'), (800, 'unstable-debug'), (800, 'unstable'), (790, 'buildd-unstable'), (700, 'experimental-debug'), (700, 'experimental'), (690, 'buildd-experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_AU.utf8, LC_CTYPE=en_AU.utf8 (charmap=UTF-8), LANGUAGE=en_AU:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages openssh-client depends on:
ii adduser 3.118
ii dpkg 1.19.0.5+b1
ii libc6 2.27-6
ii libedit2 3.1-20180525-1
ii libgssapi-krb5-2 1.16.1-1
ii libselinux1 2.8-1+b1
ii libssl1.0.2 1.0.2o-1
ii passwd 1:4.5-1.1
ii zlib1g 1:1.2.11.dfsg-1

Versions of packages openssh-client recommends:
ii xauth 1:1.0.10-1

Versions of packages openssh-client suggests:
pn keychain <none>
pn libpam-ssh <none>
ii monkeysphere 0.41-1
ii ssh-askpass-gnome [ssh-askpass] 1:7.8p1-1

-- no debconf information