dynamips: refactor

pkgs/applications/emulators/dynamips/default.nix

···
-{ lib, stdenv, fetchFromGitHub, cmake, libelf, libpcap }:
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, libelf
+, libpcap
+}:
 
 stdenv.mkDerivation rec {
   pname = "dynamips";
···
     owner = "GNS3";
     repo = pname;
     rev = "v${version}";
-    sha256 = "0pvdqs6kjz0x0wqb5f1k3r25dg82wssm7wz4psm0m6bxsvf5l0i5";
+    hash = "sha256-JQJa3NZ9mQqqvuTzU7XmAr1WRB4zuLIwBx18OY3GbV8=";
   };
 
   nativeBuildInputs = [ cmake ];
···
   cmakeFlags = [ "-DDYNAMIPS_CODE=stable" ];
 
   meta = with lib; {
+    inherit (src.meta) homepage;
     description = "A Cisco router emulator";
     longDescription = ''
       Dynamips is an emulator computer program that was written to emulate Cisco
       routers.
     '';
-    inherit (src.meta) homepage;
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ primeos ];