Ignore a few more files that we don't want to install

from sthen@
Add a list of files we don't want to include man pages for

These are specifically because we don't install the tool, but now that
the feature exists, who knows what we don't need?
And regen the file list to remove those files.
Solve a bug where the number of tabs could go negative

Which was bad makes an invalid makefile
And regenerate with the tabs in the right spot for long man pages