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)


parseResult = parseResult.getParent();
        }
        return returnList.toArray(new String[0]);
    }
    private List<ConfigurationValueProvider> registerValueProviders(String[] args) {
        final LiquibaseConfiguration liquibaseConfiguration = Scope.getCurrentScope().getSingleton(LiquibaseConfiguration.class);
        List<ConfigurationValueProvider> returnList = new ArrayList<>();
        final CommandLineArgumentValueProvider argumentProvider = new CommandLineArgumentValueProvider(commandLine.parseArgs(args));
        liquibaseConfiguration.registerProvider(argumentProvider);
        returnList.add(argumentProvider);
        final ConfiguredValue<String> defaultsFileConfig = LiquibaseCommandLineConfiguration.DEFAULTS_FILE.getCurrentConfiguredValue();
        final File defaultsFile = new File(defaultsFileConfig.getValue());
        if (defaultsFile.exists()) {
            final DefaultsFileValueProvider fileProvider = new DefaultsFileValueProvider(defaultsFile);
            liquibaseConfiguration.registerProvider(fileProvider);
            returnList.add(fileProvider);
        } else {
            Scope.getCurrentScope().getLog(getClass()).fine("Cannot find defaultsFile " + defaultsFile.getAbsolutePath());
            if (!defaultsFileConfig.wasDefaultValueUsed()) {
                
                System.err.println("Could not find defaults file " + defaultsFile.getAbsolutePath());
            }
        }
        File localDefaultsFile = new File(defaultsFile.getAbsolutePath().replaceFirst(".properties$", ".local.properties"));
        if (localDefaultsFile.exists()) {
            final DefaultsFileValueProvider fileProvider = new DefaultsFileValueProvider(localDefaultsFile) {
                @Override
                public int getPrecedence() {
                    return super.getPrecedence() + 1;
                }