update raceless

pkgs/go-raceless/default.nix

@@ -1,8 +1,6 @@
 { pkgs, go }:
 let
-  go-wrapper = pkgs.writeShellApplication {
-    name = "go";
-    text = ''
+  go-script = pkgs.writeShellScript "go-raceless" ''
     args=("$@")
     new_args=()
     has_test=false
@@ -24,13 +22,12 @@ let
         done
 
         if [[ "$found_race" == "true" ]]; then
-              exec "$REAL_GO" "''${new_args[@]}"
+            exec ${go}/bin/go "''${new_args[@]}"
         fi
     fi
 
-      exec "$REAL_GO" "$@"
+    exec ${go}/bin/go "$@"
   '';
-  };
 
   preservedAttrs = pkgs.lib.attrsets.getAttrs [
     "CGO_ENABLED"
@@ -46,9 +43,8 @@ pkgs.symlinkJoin (
     nativeBuildInputs = [ pkgs.makeWrapper ];
     postBuild = ''
       rm $out/bin/go
-
-      makeWrapper ${go-wrapper}/bin/go $out/bin/go \
-        --set REAL_GO ${go}/bin/go
+      cp ${go-script} $out/bin/go
+      chmod +x $out/bin/go
     '';
   }
   // preservedAttrs