[name]
Spacing of =item without body

[input]
=over 4

=item A

Line

=over 4

=item 1

=item 2

=back

=item B

Line

=back

[output]
.IP A 4
.IX Item "A"
Line
.RS 4
.IP 1. 4
.PD 0
.IP 2. 4
.PD
.RE
.RS 4
.RE
.IP B 4
.IX Item "B"
Line
