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.
Given the value in a statement like "SET SQL_MODE=..." this parser
is capable of deducing whether SQL_MODE is set to DEFAULT or ORACLE
or something else.