multi-ghc-travis: update to current Git master 800980d76f7a74f3

pkgs/development/tools/haskell/multi-ghc-travis/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "multi-ghc-travis-${version}";
-  version = "git-2017-05-24";
+  version = "git-2017-07-26";
 
   buildInputs = [ ghc ];
 
   src = fetchFromGitHub {
     owner = "hvr";
     repo = "multi-ghc-travis";
-    rev = "c1dcbcbcd3eadcc63adeac65d63497885b422a44";
-    sha256 = "12xss8wgsqs2fghrfl4h6g5wli6wn274zmdsq5zdcib2m7da5yw2";
+    rev = "800980d76f7a74f3cdfd76b3dff351d52d2c84ee";
+    sha256 = "03y8b4iz5ly9vkjc551c1bxalg1vl4k2sic327s3vh00jmjgvhz6";
   };
 
   installPhase = ''
···
     homepage = "https://github.com/hvr/multi-ghc-travis";
     license = licenses.bsd3;
     platforms = ghc.meta.platforms;
-    maintainers = with maintainers; [ jb55 ];
+    maintainers = with maintainers; [ jb55 peti ];
   };
 }