ports/151923: [patch] java/openjdk6: free and native openjdk bootstrap

[David DEMELIER]

I made this like pkgsrc does, pkg_add -r openjdk6 pulls some
dependencies, I agree with you pkg_add'ing the prebuilt package is
possible but some people don't like this.

If you run -current or -stable packages could be outdated too, here
using a bootstrap will build depends from ports and openjdk from ports
without any binaries and without any non-free binaries.

-- 
Demelier David