See script directory for method. The script to run in the top level
MaxScale directory is called maxscale-uncrustify.sh, which uses
another script, list-src, from the same directory (so you need to set
your PATH). The uncrustify version was 0.66.
The test wasn't built as it is not a part of the test suite. The
executable should be built but it should not be added to the test suite.
Changed the management script to only add the configuration and added a
call to it at the start of the test.