Merge pull request #9213 from j-keck/sbt0.13.9

sbt: 0.13.8 -> 0.13.9

pkgs/development/tools/build-managers/sbt/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "sbt-${version}";
-  version = "0.13.8";
+  version = "0.13.9";
 
   src = fetchurl {
     url = "http://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/${version}/sbt-launch.jar";
-    sha256 = "0n4ivla8s8ygfnf95dj624nhcyganigf7fy0gamgyf31vw1vnw35";
+    sha256 = "04k411gcrq35ayd2xj79bcshczslyqkicwvhkf07hkyr4j3blxda";
   };
 
   phases = [ "installPhase" ];