'mail-diff' => [ '--stdin|LOCATION...', 'diff the contents of emails',
'stdin|', # /|\z/ must be first for lone dash
- qw(verbose|v+ color:s no-color raw-header),
+ qw(verbose|v+ in-format|F=s color:s no-color raw-header),
@diff_opt, @net_opt, @c_opt ],
'add-external' => [ 'LOCATION',