Properly escape $ in makefile

Author: carreter

Makefile

@@ -67,13 +67,13 @@ mock_gen:
 # Unit tests with faster execution (nicer for development).
 .PHONY: fast-test
 fast-test:
-	go test -mod=vendor -race $(shell go list ./... | grep -v -e "/e2e$" -e "/e2e/.*")
+	go test -mod=vendor -race $(shell go list ./... | grep -v -e "/e2e$$" -e "/e2e/.*")
 	cd konnectivity-client && go test -race ./...
 
 # Unit tests with fuller coverage, invoked by CI system.
 .PHONY: test
 test:
-	go test -mod=vendor -race -covermode=atomic -coverprofile=konnectivity.out $(shell go list ./... | grep -v -e "/e2e$" -e "/e2e/.*") && go tool cover -html=konnectivity.out -o=konnectivity.html
+	go test -mod=vendor -race -covermode=atomic -coverprofile=konnectivity.out $(shell go list ./... | grep -v -e "/e2e$$" -e "/e2e/.*") && go tool cover -html=konnectivity.out -o=konnectivity.html
 	cd konnectivity-client && go test -race -covermode=atomic -coverprofile=client.out ./... && go tool cover -html=client.out -o=client.html
 
 .PHONY: test-integration