rails/rails — pull request #11762 by peterkovacs (2013-08-05 15:44:34+00:00)
Title: Free result_metadata directly instead of freeing 2nd, redundant call.

`result_metadata` returns a new object each time it is called, so calling `result_metadata.free` is essentially a noop. Instead call `free` directly on the metadata when we're done with it.