Modified tool container flags so CTRL-C works properly.

VOL-2594

Change-Id: If03f0238367950ee6b1573f27853404a2a749269
diff --git a/Makefile b/Makefile
index afc36aa..3ce966b 100644
--- a/Makefile
+++ b/Makefile
@@ -50,12 +50,12 @@
 # tool containers
 VOLTHA_TOOLS_VERSION ?= 1.0.3
 
-GO                = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app -v gocache:/.cache -v gocache-${VOLTHA_TOOLS_VERSION}:/go/pkg voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-golang go
+GO                = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app $(shell test -t 0 && echo "-it") -v gocache:/.cache -v gocache-${VOLTHA_TOOLS_VERSION}:/go/pkg voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-golang go
 GO_JUNIT_REPORT   = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app -i voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-go-junit-report go-junit-report
 GOCOVER_COBERTURA = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app -i voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-gocover-cobertura gocover-cobertura
-GOFMT             = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-golang gofmt
-GOLANGCI_LINT     = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app -v gocache:/.cache -v gocache-${VOLTHA_TOOLS_VERSION}:/go/pkg voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-golangci-lint golangci-lint
-HADOLINT          = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-hadolint hadolint
+GOFMT             = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app $(shell test -t 0 && echo "-it") voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-golang gofmt
+GOLANGCI_LINT     = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app $(shell test -t 0 && echo "-it") -v gocache:/.cache -v gocache-${VOLTHA_TOOLS_VERSION}:/go/pkg voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-golangci-lint golangci-lint
+HADOLINT          = docker run --rm --user $$(id -u):$$(id -g) -v ${CURDIR}:/app $(shell test -t 0 && echo "-it") voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}-hadolint hadolint
 
 .PHONY: docker-build local-protos local-lib-go