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)


|| COMMANDS.CHANGELOG_SYNC_TO_TAG_SQL.equalsIgnoreCase(command)
                || COMMANDS.GENERATE_CHANGELOG.equalsIgnoreCase(command)
                || COMMANDS.UNEXPECTED_CHANGESETS.equalsIgnoreCase(command)
                || COMMANDS.DIFF_CHANGELOG.equalsIgnoreCase(command)
                || COMMANDS.ROLLBACK_ONE_CHANGE_SET.equalsIgnoreCase(command)
                || COMMANDS.ROLLBACK_ONE_UPDATE.equalsIgnoreCase(command);
    }
    /**
     * Returns true if the given arg is a valid main command of Liquibase.
     *
     * @param arg the String to test
     * @return true if it is a valid main command, false if not
     */
    private static boolean isCommand(String arg) {
        return COMMANDS.MIGRATE.equals(arg)
                || COMMANDS.MIGRATE_SQL.equalsIgnoreCase(arg)
                || COMMANDS.UPDATE.equalsIgnoreCase(arg)
                || COMMANDS.UPDATE_SQL.equalsIgnoreCase(arg)
                || COMMANDS.UPDATE_COUNT.equalsIgnoreCase(arg)
                || COMMANDS.UPDATE_COUNT_SQL.equalsIgnoreCase(arg)
                || COMMANDS.UPDATE_TO_TAG.equalsIgnoreCase(arg)
                || COMMANDS.UPDATE_TO_TAG_SQL.equalsIgnoreCase(arg)
                || COMMANDS.ROLLBACK.equalsIgnoreCase(arg)
                || COMMANDS.ROLLBACK_TO_DATE.equalsIgnoreCase(arg)
                || COMMANDS.ROLLBACK_COUNT.equalsIgnoreCase(arg)
                || COMMANDS.ROLLBACK_SQL.equalsIgnoreCase(arg)
                || COMMANDS.ROLLBACK_TO_DATE_SQL.equalsIgnoreCase(arg)
                || COMMANDS.ROLLBACK_COUNT_SQL.equalsIgnoreCase(arg)
                || COMMANDS.REGISTER_CHANGELOG.equalsIgnoreCase(arg)
                || COMMANDS.DEACTIVATE_CHANGELOG.equalsIgnoreCase(arg)