Re: [PATCH v2 7/9] gpg-interface: introduce new config to select per gpg format program

Jeff King [off-list ref] writes:

Should we allow:

  [gpg "OpenPGP"]
  program = whatever

given that we allow:

  [gpg]
  format = OpenPGP

If the latter is allowed then we should allow the former.  

But because allowing the former is cumbersome, we may be better off
not parsing the value case-insensitively like an earlier step in
this series did.