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)


return;
            } else if (COMMANDS.SNAPSHOT.equalsIgnoreCase(command)) {
                CommandScope snapshotCommand = new CommandScope("internalSnapshot");
                snapshotCommand
                        .addArgumentValue(InternalSnapshotCommandStep.DATABASE_ARG, database)
                        .addArgumentValue(InternalSnapshotCommandStep.SCHEMAS_ARG, InternalSnapshotCommandStep.parseSchemas(database, getSchemaParams(database)))
                        .addArgumentValue(InternalSnapshotCommandStep.SERIALIZER_FORMAT_ARG, getCommandParam(OPTIONS.SNAPSHOT_FORMAT, null));
                Writer outputWriter = getOutputWriter();
                String result = InternalSnapshotCommandStep.printSnapshot(snapshotCommand, snapshotCommand.execute());
                outputWriter.write(result);
                outputWriter.flush();
                return;
            } else if (COMMANDS.EXECUTE_SQL.equalsIgnoreCase(command)) {
                CommandScope executeSqlCommand = new CommandScope("internalExecuteSql")
                        .addArgumentValue(InternalExecuteSqlCommandStep.DATABASE_ARG, database)
                        .addArgumentValue(InternalExecuteSqlCommandStep.SQL_ARG, getCommandParam("sql", null))
                        .addArgumentValue(InternalExecuteSqlCommandStep.SQLFILE_ARG, getCommandParam("sqlFile", null))
                        .addArgumentValue(InternalExecuteSqlCommandStep.DELIMITER_ARG, getCommandParam("delimiter", ";"));
                CommandResults results = executeSqlCommand.execute();
                Writer outputWriter = getOutputWriter();
                String output = (String) results.getResult("output");
                outputWriter.write(output);
                outputWriter.flush();
                return;
            } else if (COMMANDS.SNAPSHOT_REFERENCE.equalsIgnoreCase(command)) {
                CommandScope snapshotCommand = new CommandScope("internalSnapshot");
                Database referenceDatabase = createReferenceDatabaseFromCommandParams(commandParams, fileOpener);
                snapshotCommand
                        .addArgumentValue(InternalSnapshotCommandStep.DATABASE_ARG, referenceDatabase)
                        .addArgumentValue(InternalSnapshotCommandStep.SCHEMAS_ARG, InternalSnapshotCommandStep.parseSchemas(referenceDatabase, getSchemaParams(referenceDatabase)))