You have to rewrite the code so, that it sorts using the string comparitor (cmp) and you have to dereference the Hash of Hashes with an arrow operator.
The extra arrow isn't needed anymore. This changed sometime at or before 5.6.1.

In reply to Re: Answer: How do I sort a Hash of Hashes? by ysth
in thread How do I sort a Hash of Hashes? by greywolf

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