Fix run_test target in Makefile
In a prevous commit a Makefile variable was removed but a usage was left
in the code. This made an error at `run_test` make target usage.
@@ -59,7 +59,7 @@ run_test: package venv_dev
$(ACTIVATE_DEV_VENV) && \
$(REPO_ROOT) $(CLANG_VERSION) $(TEST_PROJECT) \
nosetests $(NOSECFG) ${TEST} \
- && ${EXIT_HAPPY} || ${EXIT_ERROR}
+ && { ${SHUTDOWN_SERVER_CMD}; } || ${EXIT_ERROR}
test_unit: venv_dev
$(ACTIVATE_DEV_VENV) && $(UNIT_TEST_CMD)
