Merge pull request #1482 from eed3si9n/wip/2.12.9b

Scala 2.12.9

Author: SethTisue

_config.yml

@@ -16,7 +16,7 @@ keywords:
 - Guide
 
 scala-version: 2.13.0
-scala-212-version: 2.12.8
+scala-212-version: 2.12.9
 
 collections:
   style: