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)


.usageHelp(true)
                .build());
        if (includeVersion) {
            commandSpec.addOption(CommandLine.Model.OptionSpec.builder("--version", "-v")
                    .description("Print version information and exit")
                    .versionHelp(true)
                    .build());
        }
        commandSpec.usageMessage()
                .showDefaultValues(false)
                .sortOptions(true)
                .abbreviateSynopsis(true)
                .footer("\n" + footer)
        ;
    }
    protected static String[] toArgNames(CommandArgumentDefinition<?> def) {
        LinkedHashSet<String> returnList = new LinkedHashSet<>();
        returnList.add("--" + StringUtil.toKabobCase(def.getName()).replace(".", "-"));
        returnList.add("--" + def.getName().replaceAll("\\.", ""));
        return returnList.toArray(new String[0]);
    }
    protected static String[] toArgNames(ConfigurationDefinition<?> def) {
        LinkedHashSet<String> returnList = new LinkedHashSet<>();
        returnList.add("--" + StringUtil.toKabobCase(def.getKey().replaceFirst("^liquibase.", "")).replace(".", "-"));
        returnList.add("--" + StringUtil.toKabobCase(def.getKey()).replace(".", "-"));
        returnList.add("--" + def.getKey().replaceFirst("^liquibase.", "").replaceAll("\\.", ""));
        returnList.add("--" + def.getKey().replaceAll("\\.", ""));
        return returnList.toArray(new String[0]);
    }
    public static class SecureLogFilter implements Filter {