gnucash: `rec` -> `finalAttrs`

pkgs/by-name/gn/gnucash/package.nix

···
     ]
   );
 in
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "gnucash";
   version = "5.13";
 
   # raw source code doesn't work out of box; fetchFromGitHub not usable
   src = fetchurl {
-    url = "https://github.com/Gnucash/gnucash/releases/download/${version}/gnucash-${version}.tar.bz2";
+    url = "https://github.com/Gnucash/gnucash/releases/download/${finalAttrs.version}/gnucash-${finalAttrs.version}.tar.bz2";
     hash = "sha256-CC7swzK3IvIj0/JRJibr5e9j+UqvXECeh1JsZURkrvU=";
   };
 
···
   postPatch = ''
     substituteInPlace bindings/python/__init__.py \
       --subst-var-by gnc_dbd_dir "${libdbiDrivers}/lib/dbd" \
-      --subst-var-by gsettings_schema_dir ${glib.makeSchemaPath "$out" "gnucash-${version}"};
+      --subst-var-by gsettings_schema_dir ${glib.makeSchemaPath "$out" "gnucash-${finalAttrs.version}"};
   '';
 
   # this needs to be an environment variable and not a cmake flag to suppress
···
 
   passthru.docs = stdenv.mkDerivation {
     pname = "gnucash-docs";
-    inherit version;
+    inherit (finalAttrs) version;
 
     src = fetchFromGitHub {
       owner = "Gnucash";
       repo = "gnucash-docs";
-      tag = version;
+      tag = finalAttrs.version;
       hash = "sha256-EVK36JzK8BPe6St4FhhZEqdc07oaiePJ/EH2NHm3r1U=";
     };
 
···
   preFixup = ''
     gappsWrapperArgs+=(
       # documentation
-      --prefix XDG_DATA_DIRS : ${passthru.docs}/share
+      --prefix XDG_DATA_DIRS : ${finalAttrs.passthru.docs}/share
       # db drivers location
       --set GNC_DBD_DIR ${libdbiDrivers}/lib/dbd
       # gsettings schema location on Nix
-      --set GSETTINGS_SCHEMA_DIR ${glib.makeSchemaPath "$out" "gnucash-${version}"}
+      --set GSETTINGS_SCHEMA_DIR ${glib.makeSchemaPath "$out" "gnucash-${finalAttrs.version}"}
     )
   '';
 
···
     platforms = platforms.unix;
     mainProgram = "gnucash";
   };
-}
+})
 # TODO: investigate Darwin support