Merge pull request #778 from wking/schema-makefile-phony

schema/Makefile: Add .PHONY declarations for phony targets

schema/Makefile

@@ -1,13 +1,16 @@
 
+.PHONY: default
 default: validate
 
+.PHONY: help
 help:
 	@echo "Usage: make [target]"
 	@echo
 	@echo " * 'fmt' - format the json with indentation"
 	@echo " * 'help' - show this help information"
 	@echo " * 'validate' - build the validation tool"
 
+.PHONY: fmt
 fmt:
 	for i in *.json ; do jq --indent 4 -M . "$${i}" > xx && cat xx > "$${i}" && rm xx ; done
 
@@ -16,6 +19,6 @@ validate: validate.go
 	go get -d ./...
 	go build ./validate.go
 
+.PHONY: clean
 clean:
 	rm -f validate
-