document output lines

=head1 DESCRIPTION

B<efa-m> lists scheduled tram, bus and train departures at the location I<name>.

For each departure, it shows

=over

=item * scheduled departure time,

=item * delay in minutes,

=item * platform,

=item * line,

=item * expected occupation (from _ to !, if available), and

=item * destination.

=back

If I<city> is specified, I<name> refers to a location within I<city>. Otherwise,

I<name> must be self-contained. I.e., both C<< efa Essen Hbf >> and

C<< efa "Essen Hbf" >> are valid. Note, however, than C<< efa E Hbf >> works,