#2 run_test stops running tests preemptively

[Mikkel Jensen]

Using the "run_test" command to run tests, instead of opening an erlang shell ("erl") can sometimes cause the test to fail with the following message:

It is not possible to install CT while running in interactive mode.
To exit this mode, run ct:stop_interactive().
To enter the interactive mode again, run ct:start_interactive()

Test run failed!
Reason: interactive_mode

It seems that the problem does not occur if the repetitions is specified using groups within the test suite, instead of using the "-repeat" argument to run_test