Add release build

Author: soudy

Makefile

@@ -1,8 +1,11 @@
 BINARY=epp
 
 VERSION=1.0.0
-GIT_COMMIT=$(git rev-parse @)
-LDFLAGS=-ldflags "-X main.Version=$(VERSION) -X main.GitCommit=$(GIT_COMMIT)"
+GIT_COMMIT=`git rev-parse @`
+LDFLAGS=-X main.Version=$(VERSION) -X main.GitCommit=$(GIT_COMMIT)
 
 build:
-	go build $(LDFLAGS) -o $(BINARY)
+	go build -ldflags "$(LDFLAGS)" -o $(BINARY)
+
+release:
+	go build -ldflags "-s -w $(LDFLAGS)" -o $(BINARY)