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)


}
                        Scope.getCurrentScope().getUI().sendMessage(String.format("Running Java under %s (Version %s)",
                                System.getProperties().getProperty("java.home"),
                                System.getProperty("java.version")
                        ));
                        return Integer.valueOf(0);
                    }
                    
                    
                    
                    for (int i = 0; i < args.length; i++) {
                        CodePointCheck codePointCheck = checkArg(args[i]);
                        if (codePointCheck != null) {
                            String message =
                                    "A non-standard character '" + codePointCheck.ch +
                                            "' was detected on the command line at position " +
                                            (codePointCheck.position + 1) + " of argument number " + (i + 1) +
                                            ".\nIf problems occur, please remove the character and try again.";
                            LOG.warning(message);
                            System.err.println(message);
                        }
                    }
                    try {
                        main.parseOptions(args);
                        if (main.command == null) {
                            main.printHelp(outputStream);
                            return Integer.valueOf(0);
                        }
                    } catch (CommandLineParsingException e) {
                        Scope.getCurrentScope().getUI().sendMessage(CommandLineUtils.getBanner());