[m-rev.] for review: Do not set rpath for --mercury-linkage static.

[Julien Fischer]

On Thu, 31 Mar 2016, Peter Wang wrote:

> When linking to static Mercury libraries, there is no need to set the
> runtime search path to find said libraries, so don't.
>
> compiler/handle_options.m:
> 	As above.
>
> NEWS:
> 	Mention the new behaviour.

That's fine.

Julien.