Only output sparse lines to keep Travis happy while logging verbosely to disk

GNUmakefile

@@ -67,7 +67,11 @@ test: other-consul dev-build vet
 	@echo "--> Running go test"
 	@rm -f test.log exit-code
 	go test -tags '$(GOTAGS)' -i ./...
-	{ go test $(GOTEST_FLAGS) -tags '$(GOTAGS)' -timeout 5m -v ./... 2>&1 ; echo $$? > exit-code ; } | tee test.log
+	@# Dump verbose output to test.log so we can surface test names on failure but
+	@# hide it from travis as it exceeds their log limits and causes job to be
+	@# terminated (over 4MB and over 10k lines in the UI). We need to output
+	@# _something_ to stop them terminating us due to inactivity...
+	{ go test $(GOTEST_FLAGS) -tags '$(GOTAGS)' -timeout 5m ./... 2>&1 ; echo $$? > exit-code ; } | tee test.log | grep -p '^\(ok\|FAIL\)\s*github.com/hashicorp/consul'
 	@echo "Exit code: $$(cat exit-code)" >> test.log
 	@grep -A5 'DATA RACE' test.log || true
 	@grep -A10 'panic: test timed out' test.log || true