vcsh: use finalAttrs

pkgs/by-name/vc/vcsh/package.nix

···
   perlPackages,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "vcsh";
   version = "2.0.8";
 
   src = fetchurl {
-    url = "https://github.com/RichiH/vcsh/releases/download/v${version}/${pname}-${version}.tar.xz";
+    url = "https://github.com/RichiH/vcsh/releases/download/v${finalAttrs.version}/vcsh-${finalAttrs.version}.tar.xz";
     sha256 = "sha256-VgRA3v5PIKwizmXoc8f/YMoMCDGFJK/m2uhq3EsT1xQ=";
   };
 
···
   meta = {
     description = "Version Control System for $HOME";
     homepage = "https://github.com/RichiH/vcsh";
-    changelog = "https://github.com/RichiH/vcsh/blob/v${version}/changelog";
+    changelog = "https://github.com/RichiH/vcsh/blob/v${finalAttrs.version}/changelog";
     license = lib.licenses.gpl2Plus;
     maintainers = with lib.maintainers; [
       ttuegel
···
     platforms = lib.platforms.unix;
     mainProgram = "vcsh";
   };
-}
+})