their work directory. The purpose is to be able to know which tests intend
to touch the file system and to allow a minor optimization in atf-run.
Define use.fs=true for all those tests requiring it. (This highlights that
some tests currently require modifying the file system but conceptually
they shouldn't be... which leaves room for further improvements/cleanups
later :-)
This change converts all the existing regression tests in regress/games
to the new framework provided by atf. As a side effect, this also moves
all the tests programs in regress/games to tests/games.