extra lines added by @finish in @display for DocBook

[Per Bothner]

This bug is in the 4.13.91 snapshot.

Consider this test file:

@settitle A test
@node Intro
@chapter Intro
@display
line 1
@findex line2
line 2
@findex line3
line 3
@end display

Generate DocBook:

$ makeinfo --docbook foo.texi

The output is:

<?xml version="1.0"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"; [
  <!ENTITY tex "TeX">
  <!ENTITY latex "LaTeX">
]>
<book id="foo.xml" lang="en">
<title>A test</title>
<chapter label="1" id="Intro">
<title>Intro</title>
<literallayout>line 1
<indexterm role="fn"><primary>line2</primary></indexterm>
line 2
<indexterm role="fn"><primary>line3</primary></indexterm>
line 3
</literallayout></chapter>
</book>

Notice that each indexterm is on a separate line.
Since this is in a <literallayout> this means we get extra blank
lines in the final output.

In contract, when generating --html we don't get this problem:

<h2 class="chapter">1 Intro</h2>
<div class="display">
<pre class="display">line 1
<a name="index-line2"></a>line 2
<a name="index-line3"></a>line 3
</pre></div>
--
        --Per Bothner
address@hidden   http://per.bothner.com/