improve comment in local.mk template

* targets.mk: Improve comment in local.mk template.

targets.mk

@@ -42,7 +42,9 @@ local.mk:
 	$(info = Please adapt local.mk to your local setup!         =)
 	$(info ======================================================)
 	-@$(SED) -n \
-		-e '1 i ## Remove the following line to make "all" the default target' \
+		-e '1 i ## Remove "oldorg:" to make "all" the default target,' \
+		-e '1 i ## change to your favourite default target' \
+		-e '1 i ## or provide your own defintion here' \
 		-e '1 i oldorg:' \
 		-e '/-8<-/,/->8-/ {s/^\(\s*[^#]\)/#\1/;p}' \
 		-e '$$ i ## See default.mk for further configuration options.' \