Deprecation warning from newer rdiff-backup versions

[Sethur]

Newer rdiff-versions (I am using 2.2.6) started to give deprecation warnings about using a deprecated API, for example when calling:

mscs list-backups <world>

the output will start with:

WARNING: this command line interface is deprecated and will disappear, start using the new one as described with '--new --help'. WARNING: Server will be called with deprecated command line interface to guarantee compatibility. It might lead to a deprecation warning from newer rdiff-backup versions. Use '--api-version 201' (or higher) to avoid it.

As far as I know, this cannot be easily hidden or ignored.

[sandain]

I've noticed this warning. We will have to look into an equivalent command for more recent versions. The question is whether or not we need to check rdiff-backup version numbers to retain backwards compatibility with old versions once this is fixed.