LSB checkers updated

I did some cleanup work on the checkers the
past few days, closing bugs 735 (accept standard
help arguments - by adding common argument
handling to all the checkers and updating all
the manpages, as well as creating one for
lsbcmdchk which was missing a manpage - an
additional bug which was opened and closed), and
984 (pkgchk not logging header check errors).

This did advance the state of play, but there
are still several issues that need work:

Runtime-platform checkers (libchk, cmdchk):

* All plannned cmdchk work is done

* Libchk is still failing on 18 virtual table
entries over two classes on six of the seven
platforms; the seventh is behaving differently
and we don't know why.  In any case, an answer
is needed for the 18 fails.  Last time it was
suggested to just remove the tests, but it turns
out from the way the data is generated out of
the database for libchk to test, it's not trivial
to just remove.  Also we need to explore the
difference on the 7th platform (ppc64).


Application checkers (appchk, pkgchk, archk):

* archk is not needed for certification today.
Needs to understand LSB source-only interfaces
and not flag them as errors.

* appchk has only one current open issue, that's
a couple of new failures on ia64 that were
exposed when a previous fix was applied.

* pkgchk is now doing what it's supposed to,
but as a result is flagging lots of failures.
We need to dig deeper and decide which of these
are real failures and which should not be
reported as such.