Re: [PATCH 2/5] lib-gpg: allow tests with the GPGSM prereq first

> > I am not sure. It might depend on the gpg version. Or maybe gpgsm
> >  does it but not gpg. I will check.
>
> If $GNUPGHOME or --homedir is the default (usually ~/.gnupg) gets
> created by 'gpg' and 'gpgsm':
>
>     $ ls ~/.gnupg
>     ls: cannot access '/root/.gnupg': No such file or directory
>     $ gpgsm
>     gpgsm: directory '/root/.gnupg' created
>     gpgsm: invalid command (there is no implicit command)
>     $ rm -rf ~/.gnupg && gpg
>     gpg: directory '/root/.gnupg' created
>     [...]
>
> If it is not the default then it will not be created:
>
>     $ GNUPGHOME=$HOME/test gpgsm
>     gpgsm: keyblock resource '/root/test/pubring.kbx': No such file or directory
>     $ GNUPGHOME=$HOME/test gpg
>     gpg: keyblock resource '/root/test/pubring.kbx': No such file or directory