We have a liquibase command that looks something like this:

```sh
/liquibase/liquibase \
       --driver=org.postgresql.Driver \
       --changeLogFile="db.changelog-master.xml" \
       --url=<redacted> \
       --username=<redacted> \
       --password=<redacted> \
       update \
       -Dcoreschema="${core_schema}"
```

After upgrading the CLI from 4.3.3 to 4.4.0, it fails with the following error:

```
Unexpected argument(s): -Dcoreschema=public

For detailed help, try 'liquibase --help' or 'liquibase <command-name> --help'
```

Since the release notes state "this release should be 100% backwards compatible", I expect this is an oversight? Or is there a replacement for the `-Dproperty=value` syntax? I haven't found one looking through `--help` and the [property substitution docs](https://docs.liquibase.com/concepts/basic/changelog-property-substitution.html) at least.

The syntax can also still be found on https://docs.liquibase.com/tools-integrations/cli/home.html:

![image](https://user-images.githubusercontent.com/2620907/122090597-36d63400-ce08-11eb-92e8-d320cd5c5baa.png)


private static final String ROLLBACK_SQL = "rollbackSQL";
        private static final String ROLLBACK_TO_DATE = "rollbackToDate";
        private static final String ROLLBACK_TO_DATE_SQL = "rollbackToDateSQL";
        private static final String SNAPSHOT = "snapshot";
        private static final String SNAPSHOT_REFERENCE = "snapshotReference";
        private static final String STATUS = "status";
        private static final String SYNC_HUB = "syncHub";
        private static final String TAG = "tag";
        private static final String TAG_EXISTS = "tagExists";
        private static final String UNEXPECTED_CHANGESETS = "unexpectedChangeSets";
        private static final String UPDATE = "update";
        private static final String UPDATE_COUNT = "updateCount";
        private static final String UPDATE_COUNT_SQL = "updateCountSQL";
        private static final String UPDATE_SQL = "updateSQL";
        private static final String UPDATE_TESTING_ROLLBACK = "updateTestingRollback";
        private static final String UPDATE_TO_TAG = "updateToTag";
        private static final String UPDATE_TO_TAG_SQL = "updateToTagSQL";
        private static final String VALIDATE = "validate";
    }
    @SuppressWarnings("HardCodedStringLiteral")
    private enum OPTIONS {
        ;
        private static final String VERBOSE = "verbose";
        private static final String CHANGELOG_FILE = "changeLogFile";
        private static final String DATA_OUTPUT_DIRECTORY = "dataOutputDirectory";
        private static final String DIFF_TYPES = "diffTypes";
        private static final String CHANGE_SET_ID = "changeSetId";
        private static final String CHANGE_SET_AUTHOR = "changeSetAuthor";
        private static final String CHANGE_SET_PATH = "changeSetPath";
        private static final String DEPLOYMENT_ID = "deploymentId";