Log Message:
Update net/ruby-dnsruby to 1.50.

Changes:
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r432 | alexd | 2010-09-15 10:06:11 +0100 (Wed, 15 Sep 2010) | 1 line

Removing trailing SOA record from returned AXFR data
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r431 | alexd | 2010-09-15 10:05:40 +0100 (Wed, 15 Sep 2010) | 1 line

Making RRs comparable - they now sort by owner name then type then rdata
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r430 | alexd | 2010-09-02 14:48:18 +0100 (Thu, 02 Sep 2010) | 1 line

Suppress unnecessary fatal error
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r429 | alexd | 2010-08-26 11:28:43 +0100 (Thu, 26 Aug 2010) | 1 line

Handle exceptions when closing potentially borked sockets
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r428 | alexd | 2010-08-25 16:16:39 +0100 (Wed, 25 Aug 2010) | 1 line

Synchronising access properly - rubyforge 28504