Force textual pinpad

[Paolo Bolzoni]

Yes, the pair
$ gpg-connect-agent killagent /bye
$ gpg-connect-agent /bye
works fine too and it is probably prettier than CTRL-C the agent.

However, I think restarting the agent manually is very useful even
without SSH. The reason is possible errors in the configuration, if
the command fail you immediately know something is wrong and you can
fix. I learnt from experience as I forgot the hyphen in ``no-grab''
and seeing the agent not working I double checked outright.