Bug#257693: netcfg: fails when multiple interfaces available and DEBCONF_PRIORITY=critical

[Colin Watson <cjwatson@debian.org>]

Package: netcfg
Version: 0.71
Severity: normal

If the debconf priority is critical and multiple interfaces are
available, netcfg only asks which interface to use at high priority, so
it fails. Trying again works fine, as the error causes the priority to
be dropped.

There may be other instances of the same problem, which this one
obscured; basically if there's no default (either by Default: or SET)
then the question probably needs to be asked at critical priority.

-- 
Colin Watson                                  [cjwatson@flatline.org.uk]