update swift core

Change-Id: If5126534c4cd65f091950e772e43fe2af1172731
Fix CSV output

A previous commit that removed the 'received reviews' from the default
output totally broke CSV output.  This gets it working again.

Change-Id: I76775c496b5b450332f0e8f9d6fa4f7383ffc630
Merge "Fix CSV output"
Merge "update swift core"