ocamlPackages.gnuplot: small cleaning

pkgs/development/ocaml-modules/gnuplot/default.nix

@@ -6,19 +6,15 @@
   iso8601,
 }:
 
-buildDunePackage rec {
+buildDunePackage (finalAttrs: {
   pname = "gnuplot";
   version = "0.7";
 
-  useDune2 = true;
-
-  minimalOCamlVersion = "4.03";
-
   src = fetchFromGitHub {
     owner = "c-cube";
-    repo = "ocaml-${pname}";
-    rev = "v${version}";
-    sha256 = "02pzi3lb57ysrdsba743s3vmnapjbxgq8ynlzpxbbs6cn1jj6ch9";
+    repo = "ocaml-gnuplot";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-CTIjZbDM6LX6/dR6hF9f8ipb99CDHLV0y9qfsuiI/wo=";
   };
 
   propagatedBuildInputs = [
@@ -26,10 +22,10 @@ buildDunePackage rec {
     iso8601
   ];
 
-  meta = with lib; {
-    inherit (src.meta) homepage;
-    description = "Ocaml bindings to Gnuplot";
-    maintainers = [ maintainers.bcdarwin ];
-    license = licenses.lgpl21;
+  meta = {
+    homepage = "https://github.com/c-cube/ocaml-gnuplot";
+    description = "OCaml bindings to Gnuplot";
+    maintainers = [ lib.maintainers.bcdarwin ];
+    license = lib.licenses.lgpl21;
   };
-}
+})