infochimps-labs/ironfan — pull request #221 by nickmarden (2012-12-11 19:23:41+00:00)
Title: Fixes nested array bug when computing list of AZs for an ELB

This patch ensures that the list of availability zones to be added or removed from an ELB (computed by uniquifying the list of all AZs in which there are EC2 instances of interest) is an array, rather than an array of arrays.

It's a miracle the code ever worked as it was written.