This is a follow-up to commit 79a46d6537 ("gnupg: Automatically fallback to
'always policy when non-interactive."), which introduced the following
problem:
guix refresh --update libvirt
-> guix refresh: error: invalid key-download policy: #f
* guix/scripts/refresh.scm (%default-options): Set default key-download option
value to 'auto.
(%options): Accept auto as a valid value from the command line.
Change-Id: I45ceee8e07d1a3a3c377e12ed017813f92289565
Maxim Cournoyer
ec8e15584c