[m-dev.] for review: make HLDS dumps easier to use

[Zoltan Somogyi]

> I haven't had a look at anything except the log message.
> But I think that since this new option is a new feature,
> and particularly since it is something that is not important
> for users, we should not include this in the forthcoming release.

As we discussed at tuesday's meeting, the freeze is essentially on hold
until the debugging changes get committed, since they will require retesting.

Zoltan.