+Note: Blank lines and lines beginning with '#' are ignored.
+
+Commands can be prefixed with "EXPECT_FAILURE:" to indicate that a
+command is expected to return a non-zero value. In this case, a return
+value of zero from the command will cause the test to fail.
+
+If none of the commands in the script cause the test to fail (as
+described above), then the test will pass.