Package: bash Version: 4.3-11+b1 Severity: wishlist File /etc/skel/.bashrc should contain line "export GPG_TTY=$(tty)". GnuPG agent's (package: gpg-agent) man/info page says that
You should always add the following lines to your .bashrc or whatever initialization file is used for all shell invocations: GPG_TTY=$(tty) export GPG_TTY gpg-agent is or will be on every Debian system because package gnupg (2.1.x) depends on it. I think it would be a good idea to have those required commands on /etc/skel/.bashrc.