userv: Tidy up a bit. Require file descriptors to be right.

[cryptomail] / .userv / rc

### Userv configuration for cryptomail

require-fd 0 read
require-fd 1-2 write
reject-fd 3-
no-suppress-args

if glob service generate
	execute bin/uwrap generate -f %@cryptomail.distorted.org.uk
elif glob service info
	execute bin/uwrap info
elif glob service revoke
	execute bin/uwrap revoke
elif glob service list
	execute bin/uwrap list
elif glob service help
	execute bin/uwrap help
elif ( glob service addrcheck:cryptomail-default
     & glob calling-user qmaild
     )
	execute bin/cryptomail addrcheck --
fi