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)


.addArgumentValue(InternalSnapshotCommandStep.SERIALIZER_FORMAT_ARG, getCommandParam(OPTIONS.SNAPSHOT_FORMAT, null));
                Writer outputWriter = getOutputWriter();
                outputWriter.write(InternalSnapshotCommandStep.printSnapshot(snapshotCommand, snapshotCommand.execute()));
                outputWriter.flush();
                return;
            }
            Liquibase liquibase = new Liquibase(changeLogFile, fileOpener, database);
            try {
                if (hubConnectionId != null) {
                    try {
                        liquibase.setHubConnectionId(UUID.fromString(hubConnectionId));
                    } catch (IllegalArgumentException e) {
                        throw new LiquibaseException("The command '" + command + "' failed because parameter 'hubConnectionId' has invalid value '" + hubConnectionId + "' Learn more at https:hub.liquibase.com");
                    }
                }
            } catch (IllegalArgumentException e) {
                throw new LiquibaseException("Unexpected hubConnectionId format: " + hubConnectionId, e);
            }
            ChangeExecListener listener = ChangeExecListenerUtils.getChangeExecListener(
                    liquibase.getDatabase(), liquibase.getResourceAccessor(),
                    changeExecListenerClass, changeExecListenerPropertiesFile);
            liquibase.setChangeExecListener(listener);
            if (database != null) {
                database.setCurrentDateTimeFunction(currentDateTimeFunction);
            }
            for (Map.Entry<String, Object> entry : changeLogParameters.entrySet()) {
                liquibase.setChangeLogParameter(entry.getKey(), entry.getValue());
            }
            if (COMMANDS.LIST_LOCKS.equalsIgnoreCase(command)) {
                liquibase.reportLocks(System.err);