'ls-external' => [ '[FILTER...]', 'list publicinbox|extindex locations',
qw(format|f=s z|0 local remote quiet|q) ],
'forget-external' => [ 'URL_OR_PATHNAME...|--prune',
'ls-external' => [ '[FILTER...]', 'list publicinbox|extindex locations',
qw(format|f=s z|0 local remote quiet|q) ],
'forget-external' => [ 'URL_OR_PATHNAME...|--prune',