Fix ruby stability hash issue in recursor.conf

Using the de-facto standard of sort.map on a hash we avoid an issue
with ruby hashes not having their key/value pairs consistently placed
and the resulting file changing every few invocations

Change-Id: I870e546e3da420e4924afa04bb5815ccbd4a9bab
Merge "Fix ruby stability hash issue in recursor.conf" into production