Fix check-cluster logic (#466)

Signed-off-by: Brett Tofel <[email protected]>

Author: bentito

Makefile

@@ -277,7 +277,7 @@ demo-update:
 
 .PHONY: check-cluster
 check-cluster:
-	if ! kubectl config current-context >/dev/null 2>&1; then \
+	@kubectl config current-context >/dev/null 2>&1 || ( \
 		echo "Error: Could not get current Kubernetes context. Maybe use 'run' or 'e2e' targets first?"; \
 		exit 1; \
-	fi
+	)