Turn on test options that were left disabled in several TESTING input files.
Set "Put T to test the driver routines" to T in cgg.in, dgg.in, sgg.in,
and zgg.in so the generalized nonsymmetric eigenvalue driver tests are run.
Also set "Put T to test the error exits" to T in cbb.in, dbb.in, sbb.in,
and zbb.in to restore the corresponding error-exit checks.