don't use my protobuf path

net/version/Makefile

@@ -2,7 +2,7 @@
 all: semver.pb.go
 
 semver.pb.go: semver.proto
-	protoc --gogo_out=. --proto_path=../../../../../:/usr/include/google:. $<
+	protoc --gogo_out=. --proto_path=../../../../../:/usr/local/opt/protobuf/include:. $<
 
 clean:
 	rm semver.pb.go