change kustomize install templating to avoid tripping automated secur…

…ity alerts

Signed-off-by: jberkhahn <jaberkha@us.ibm.com>

pkg/plugins/golang/v4/scaffolds/internal/templates/makefile.go

@@ -203,7 +203,7 @@ $(KUSTOMIZE): $(LOCALBIN)
 		echo "$(LOCALBIN)/kustomize version is not expected $(KUSTOMIZE_VERSION). Removing it before installing."; \
 		rm -rf $(LOCALBIN)/kustomize; \
 	fi
-	test -s $(LOCALBIN)/kustomize || { curl -Ss $(KUSTOMIZE_INSTALL_SCRIPT) | bash -s -- $(subst v,,$(KUSTOMIZE_VERSION)) $(LOCALBIN); }
+	test -s $(LOCALBIN)/kustomize || { curl -Ss $(KUSTOMIZE_INSTALL_SCRIPT) --output install_kustomize.sh && bash install_kustomize.sh $(subst v,,$(KUSTOMIZE_VERSION)) $(LOCALBIN); rm install_kustomize.sh; }
 
 .PHONY: controller-gen
 controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary. If wrong version is installed, it will be overwritten.