kustomize: fix variable interpolation for version info

pkgs/development/tools/kustomize/default.nix

@@ -1,7 +1,7 @@
 { lib, buildGoModule, fetchFromGitHub }:
 
 buildGoModule rec {
-  name = "kustomize-${version}";
+  pname = "kustomize";
   version = "3.1.0";
   # rev is the 3.1.0 commit, mainly for kustomize version command output
   rev = "95f3303493fdea243ae83b767978092396169baf";
@@ -9,7 +9,7 @@ buildGoModule rec {
   goPackagePath = "sigs.k8s.io/kustomize";
   subPackages = [ "cmd/kustomize" ];
 
-  buildFlagsArray = let t = "${goPackagePath}/pkg/commands/misc"; in ''
+  buildFlagsArray = let t = "${goPackagePath}/v3/pkg/commands/misc"; in ''
     -ldflags=
       -s -X ${t}.kustomizeVersion=${version}
          -X ${t}.gitCommit=${rev}
@@ -19,7 +19,7 @@ buildGoModule rec {
   src = fetchFromGitHub {
     sha256 = "0kigcirkjvnj3xi1p28p9yp3s0lff24q5qcvf8ahjwvpbwka14sh";
     rev = "v${version}";
-    repo = "kustomize";
+    repo = pname;
     owner = "kubernetes-sigs";
   };