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)


}
        if (outputFile != null) {
            FileOutputStream fileOut;
            try {
                fileOut = new FileOutputStream(outputFile, false);
                return fileOut;
            } catch (IOException e) {
                Scope.getCurrentScope().getLog(getClass()).severe(String.format(
                        coreBundle.getString("could.not.create.output.file"),
                        outputFile));
                throw e;
            }
        } else {
            return outputStream;
        }
    }
    /**
     * Sets the default outputstream to use. Mainly useful for testing and the Command wrappers.
     */
    public static PrintStream setOutputStream(PrintStream outputStream) {
        Main.outputStream = outputStream;
        return outputStream;
    }
    private Writer getOutputWriter() throws IOException {
        String charsetName = GlobalConfiguration.OUTPUT_FILE_ENCODING.getCurrentValue();
        return new OutputStreamWriter(getOutputStream(), charsetName);
    }
    /**
     * Determines if this program is executed on a Microsoft Windows-type of operating system.
     *