Tweak test titles in mopacTest
Tweak test titles in mopacTest

I would do a fixup commit and rebase it, but this straddles
a massive change of tabs to spaces, so it's a nightmare.
Thus we're living with this extra commit.
nickvandewiele/RMG-Py,nyee/RMG-Py,nickvandewiele/RMG-Py,pierrelb/RMG-Py,nyee/RMG-Py,pierrelb/RMG-Py