ctests: uninvert tests that were fixed by updates

ctests: uninvert tests that were fixed by updates

I believe these tests were fixed by TeX Live updates.

Comparing the log files for a system where the tests fail with a
system where the tests pass, below are some of the differences
between the "good" and "bad" logs:

bad:
LaTeX2e <2015/01/01>
Babel <3.9l>
Package: fontspec 2015/03/14 v2.4c
Package: expl3 2015/03/01 v5547 L3 programming layer

good:
LaTeX2e <2015/01/01> patch level 2
Babel <3.9m>
Package: fontspec 2015/07/22 v2.4d
Package: expl3 2015/07/30 v5724 L3 programming layer