'make vendor-install' can lead to an infinite fork loop

[nuno-silva]

In

gluster-prometheus/Makefile

Lines 82 to 85 in 3ebaacc

	vendor-install:
	@echo Installing vendored packages
	@$(DEPENV) dep ensure -v -vendor-only || $(MAKE) vendor-install
	@echo

@$(DEPENV) dep ensure -v -vendor-only || $(MAKE) vendor-install leads to an infinite fork loop when dep fails.
|| $(MAKE) vendor-install should be removed.