BUILD: makefile: always build the flags utility
This utility is absolutely required for developers and not having it
built by default is a real pain that tends to encourage keeping an
outdated copy somewhere else. Let's have it built by default then,
since it has no dependency and is ultra-small.
diff --git a/Makefile b/Makefile
index d5c1c5f..25a719d 100644
--- a/Makefile
+++ b/Makefile
@@ -837,7 +837,7 @@
@echo
@exit 1
else
-all: haproxy $(EXTRA)
+all: haproxy dev/flags/flags $(EXTRA)
endif
endif