Fix: Corrected scenario "go-install-tool" in makefile (#499)

Signed-off-by: Taisuke Okamoto <t.okamoto@idcf.jp>

Author: tokamoto-idcf

Makefile

@@ -87,23 +87,23 @@ docker-push:
 # Download controller-gen locally if necessary
 CONTROLLER_GEN = $(shell pwd)/bin/controller-gen
 controller-gen:
-	$(call go-get-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen@v0.4.1)
+	$(call go-install-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen@v0.4.1)
 
 # Download kustomize locally if necessary
 KUSTOMIZE = $(shell pwd)/bin/kustomize
 kustomize:
-	$(call go-get-tool,$(KUSTOMIZE),sigs.k8s.io/kustomize/kustomize/v3@v3.8.7)
+	$(call go-install-tool,$(KUSTOMIZE),sigs.k8s.io/kustomize/kustomize/v3@v3.8.7)
 
-# go-get-tool will 'go get' any package $2 and install it to $1.
+# go-install-tool will 'go install' any package $2 and install it to $1.
 PROJECT_DIR := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))
-define go-get-tool
+define go-install-tool
 @[ -f $(1) ] || { \
 set -e ;\
 TMP_DIR=$$(mktemp -d) ;\
 cd $$TMP_DIR ;\
 go mod init tmp ;\
 echo "Downloading $(2)" ;\
-GOBIN=$(PROJECT_DIR)/bin go get $(2) ;\
+GOBIN=$(PROJECT_DIR)/bin go install $(2) ;\
 rm -rf $$TMP_DIR ;\
 }
 endef