private static void log(final String msg, Object... args) {
        System.out.println(LogUtil.message(msg, args));
    }
Do a hacky string replace as if we modify the map representation of the yaml
and write it back to a string we lose any commented stuff and it changes loads
of lines when we only really want to change a few.
stroom-test-common/src/main/java/stroom/test/common/util/db/SetupDevEnv.java