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)


import liquibase.resource.CompositeResourceAccessor;
import liquibase.resource.FileSystemResourceAccessor;
import liquibase.resource.ResourceAccessor;
import liquibase.ui.ConsoleUIService;
import liquibase.util.ISODateFormat;
import liquibase.util.LiquibaseUtil;
import liquibase.util.StringUtil;
import liquibase.util.xml.XMLResourceBundle;
import liquibase.util.xml.XmlResourceBundleControl;
import java.io.*;
import java.lang.reflect.Field;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.nio.file.Paths;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.text.MessageFormat;
import java.text.ParseException;
import java.util.*;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.logging.*;
import static java.util.ResourceBundle.getBundle;
/**
 * Class for executing Liquibase via the command line.
 *
 * @deprecated use liquibase.integration.commandline.LiquibaseCommandLine.
 */
public class Main {