Man page preformatted text needs an extra newline after the ending
marker to create a paragraph break. This bug was introduced by the
patch from issue #7797 to place explicit ".nf" and ".fi" markers around
preformatted blocks.
Applying patch provided in issue #7797.
Fixes to man-pages:
- Character '-' must be espaced as '\-'
- Surround preformatted text with '.nf' and '.fi' to adjust filling
- Give every page a NAME section for indexing by mandb
- Pass the man page filename without extension to .TH in its header
Also added a title to the HTML header.