two spaces after "." at EOL?

[Mark Polesky]

I understand texinfo needs 2 spaces after ".", but if the "." is
the last thing on a line, do I need to put 2 spaces somewhere?
After the "." on the same line? At the beginning of the next line?
Or is it not needed in that situation?

I did my "homework", too, but I couldn't find the answer here:
http://www.gnu.org/software/texinfo/manual/texinfo/html_node/Inserting-Space.html

Thanks.
- Mark