'ls-external' => [ '[FILTER]', 'list publicinbox|extindex locations',
qw(format|f=s z|0 globoff|g invert-match|v local remote), @c_opt ],
'ls-label' => [ '', 'list labels', qw(z|0 stats:s), @c_opt ],
+'ls-sync' => [ '', 'list sync folders',
+ qw(z|0 z|0 globoff|g invert-match|v local remote), @c_opt ],
'forget-external' => [ 'LOCATION...|--prune',
'exclude further results from a publicinbox|extindex',
qw(prune), @c_opt ],