fixed incorrect package in ldflags

Makefile

@@ -30,6 +30,6 @@ buildProject:
 buildDockerImage:
 	rm -rf docker_releases 
 	mkdir docker_releases
-	CGO_ENABLED=0 gox -output="docker_releases/{{.Dir}}_{{.OS}}_{{.Arch}}/{{.Dir}}" -osarch="linux/amd64 linux/arm" -ldflags="-X util.ldFlagNodeJS=`node --version` -X util.ldFlagCommit=`git rev-parse HEAD` -X util.ldFlagYarn=`yarn --version` -X util.ldFlagCompilationTime=`date --iso-8601=seconds`"
+	CGO_ENABLED=0 gox -output="docker_releases/{{.Dir}}_{{.OS}}_{{.Arch}}/{{.Dir}}" -osarch="linux/amd64 linux/arm" -ldflags="-X github.com/maxibanki/golang-url-shortener/util.ldFlagNodeJS=`node --version` -X github.com/maxibanki/golang-url-shortener/util.ldFlagCommit=`git rev-parse HEAD` -X github.com/maxibanki/golang-url-shortener/util.ldFlagYarn=`yarn --version` -X github.com/maxibanki/golang-url-shortener/util.ldFlagCompilationTime=`date --iso-8601=seconds`"
 	docker build -t maxibanki/golang_url_shortener:arm -f Dockerfile.arm .
 	docker build -t maxibanki/golang_url_shortener -f Dockerfile.amd64 .