[sr-dev] registrar lookup() and xavp_rcd

Hi,

The documentation for `registrar` says that record properties can be stored in the XAVP set in the `xavp_rcd` modparam when `registered()` is called.

But it does not say that this XAVP will be populated when a `lookup()` is done. And yet, it is populated; I have recently benefited from this.

I think this is a really bit of functionality to mention, otherwise one is left guessing how many registrar operations are required to obtain usrloc binding data.

I will be happy to push a documentation fix to correct this, but I wanted to clarify whether this is just an oversight or whether this is unexpected behaviour.

Thanks,

-- Alex