add-determinism: Fix meta.mainProgram, add compat symlink (#443696)

pkgs/by-name/ad/add-determinism/package.nix

@@ -28,6 +28,10 @@ rustPlatform.buildRustPackage rec {
     ln -s ${./Cargo.lock} Cargo.lock
   '';
 
+  postInstall = ''
+    ln -s add-det $out/bin/add-determinism
+  '';
+
   doCheck = !stdenv.hostPlatform.isDarwin; # it seems to be running forever on darwin
 
   nativeBuildInputs = [
@@ -47,6 +51,6 @@ rustPlatform.buildRustPackage rec {
       sharzy
     ];
     platforms = lib.platforms.all;
-    mainProgram = "add-determinism";
+    mainProgram = "add-det";
   };
 }