Looks like this script was left over from quite a long time ago, and
was expecting CLI params from the "old"-style Automake test engine.
Update it to look for `--test-name` to get the test name, and update a
few other minor style things.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
(cherry picked from commit e8277d9d0605ee8cd9a6e6b3b63b22526aef9c38)
2779a6a96b