Documentation error on Pruner.groovy . Wrong parameter specified.

[RegiBrazil]

At the docs (README.md) it says:
...
The supported options are:
...
-g,--group
: will prune all the builds in the specified group

-g is fine but -group is NOT. the correct parameter is: groupName

Also I suggest adding an example how to invoke the utilities since is not so obvious..
One example like below:
/var/dbb/v.1.0.6/bin/groovyz Pruner.groovy --groupName DemoHealthCare-teste

@drbruce-git replied on that at:
https://ibm-systems-z.slack.com/archives/C2TBPA725/p1587132738112500?thread_ts=1586352800.067200&cid=C2TBPA725