automake 1.4-p4 usage bug

[Tim Mooney]

There's a general "off by one" error in the algorithm that usage() uses
to output what files automake will keep.  Running

        automake --help

shows several files (README, config.h.bot, ltcf-c.sh) twice and because of
this ends up missing several files at the end of the array (stamp-vti,
texinfo.tex, ylwrap).

My approach to fixing it would be to let the last column be shorter than
any of the other columns (even several lines shorter), but the goal of
the usage() algorithm seems to be to avoid that.

Also, the $gen_copyright should be updated to include years after 1999.

Tim
-- 
Tim Mooney                              address@hidden
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