#14 Pod2HtmlTree:Package index generation may cause HTML glitch

[Michael Sorens]

During generation of each package's index file (i.e. index.
html from package.html), a glitch may appear in the
finished index.html file.
The first sentence of the first paragraph is extracted as
the package summary, used in the next higher level
description as well as the summary line within index.html.
But if this is just one line of a multi-line paragraph, the
HTML structure will be compromised by the loss of the
opening

.
Example:

Sentence one. Sentence two.

will be split into

Sentence one.

as the summary and

Sentence two.

as the remainder, missing an opening

.