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)


}
    /**
     * Checks for missing command line parameters and, if any problems are found,
     * returns the list of issues in String form.
     *
     * @param messages an array of Strings to which messages for issues found will be added
     */
    private void checkForMissingCommandParameters(final List<String> messages) {
        if ((commandParams.isEmpty() || commandParams.iterator().next().startsWith("-"))
                && (COMMANDS.CALCULATE_CHECKSUM.equalsIgnoreCase(command))) {
            messages.add(coreBundle.getString("changeset.identifier.missing"));
        }
    }
    /**
     * Checks for incorrectly written command line parameters and, if any problems are found,
     * returns the list of issues in String form.
     *
     * @param messages an array of Strings to which messages for issues found will be added
     */
    private void checkForMalformedCommandParameters(final List<String> messages) {
        if (commandParams.isEmpty()) {
            return;
        }
        final int CHANGESET_MINIMUM_IDENTIFIER_PARTS = 3;
        if (COMMANDS.CALCULATE_CHECKSUM.equalsIgnoreCase(command)) {
            for (final String param : commandParams) {
                if ((param != null) && !param.startsWith("-")) {
                    final String[] parts = param.split("::");
                    if (parts.length < CHANGESET_MINIMUM_IDENTIFIER_PARTS) {
                        messages.add(coreBundle.getString("changeset.identifier.must.have.form.filepath.id.author"));