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)


} else {
                    if (LiquibaseCommandLineConfiguration.LOG_FILE.getCurrentValue() == null) {
                        exception.printStackTrace(System.err);
                    }
                }
            }
            if (printUsage) {
                System.err.println();
                System.err.println("For detailed help, try 'liquibase --help' or 'liquibase <command-name> --help'");
            }
            suggestionsPrintWriter.flush();
            final String suggestions = suggestionWriter.toString();
            if (suggestions.length() > 0) {
                System.err.println();
                System.err.println(suggestions);
            }
        } catch (IOException e) {
            Scope.getCurrentScope().getLog(getClass()).warning("Error closing stream: " + e.getMessage(), e);
        }
        return 1;
    }
    public int execute(String[] args) {
        try {
            final String[] finalArgs = adjustLegacyArgs(args);
            configureLogging(Level.OFF, null);
            Main.runningFromNewCli = true;
            final List<ConfigurationValueProvider> valueProviders = registerValueProviders(finalArgs);
            try {
                return Scope.child(configureScope(), () -> {
                    if (!LiquibaseCommandLineConfiguration.SHOULD_RUN.getCurrentValue()) {