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)


}
    private String getSchemaParams(Database database) throws CommandLineParsingException {
        String schemaParams = getCommandParam(OPTIONS.SCHEMAS, schemas);
        if (schemaParams == null || schemaParams.isEmpty()) {
            return database.getDefaultSchema().getSchemaName();
        }
        return schemaParams;
    }
    private CommandScope createLiquibaseCommand(Database database, Liquibase liquibase, String commandName, Map<String, Object> argsMap)
            throws LiquibaseException {
        argsMap.put("rollbackScript", rollbackScript);
        argsMap.put("changeLogFile", changeLogFile);
        argsMap.put("database", database);
        argsMap.put("liquibase", liquibase);
        if (!commandParams.contains("--help")) {
            argsMap.put("changeLog", liquibase.getDatabaseChangeLog());
        }
        ChangeLogParameters clp = new ChangeLogParameters(database);
        for (Map.Entry<String, Object> entry : changeLogParameters.entrySet()) {
            clp.set(entry.getKey(), entry.getValue());
        }
        argsMap.put("changeLogParameters", clp);
        if (this.commandParams.contains("--force") || this.commandParams.contains("--force=true")) {
            argsMap.put("force", Boolean.TRUE);
        }
        if (this.commandParams.contains("--help")) {
            argsMap.put("help", Boolean.TRUE);
        }
        if (liquibaseProLicenseKey != null) {
            argsMap.put("liquibaseProLicenseKey", liquibaseProLicenseKey);