Libaterm Portfile correction

[Ryan Schmidt]

On Jul 11, 2007, at 12:00, Denis Bueno wrote:

> In order for libaterm to download, the following should be added to
> master_sites:
>
> http://homepages.cwi.nl/~daybuild/releases/
>
> Apparently http://www.cwi.nl/projects/MetaEnv/aterm/ (the current
> master_sites setting) is permanently outdated, but I can't be sure  
> of that.

I changed the master_sites in r26928. Thanks, Denis. Paul, I hope you  
don't mind.