[RFC]: use --no-rdoc to implement NOPORTDOCS for rubygem-*

[Philip M. Gollucci]

http://people.freebsd.org/~pgollucci/no_rdoc.diff

The only rubygem-* port this breaks is www/rubygem-merb

<aside>
ideally we'd make each DISTFILE a port and it would just work

www/rubygem-mongrel and www/rubygem-mongrel_cluster
required much less changes so I've patched them and they work as is now
</aside>

mysql> select count(1)
from build_ports bp, ports p
where bp.port_id = p.port_id
and p.port_directory like '%/rubygem-%'
and bp.build_id = 27;
+----------+
| count(1) |
+----------+
|      168 |
+----------+




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Philip M. Gollucci (pgollucci at ridecharge.com)
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