fixed darwin build

.circleci/config.yml

@@ -46,12 +46,10 @@ jobs:
       - run:
           name: "Publish Release on GitHub"
           command: |
-            go get github.com/tcnksm/ghr
             mkdir -p release
-            ls -la artifacts/linux
-            ls -la artifacts/darwin
             cp artifacts/linux/* release/
             cp artifacts/darwin/* release/
+            go get github.com/tcnksm/ghr
             ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} -delete ${CIRCLE_TAG} release/
 workflows:
   version: 2

Makefile

@@ -36,4 +36,4 @@ build-linux:
 .PHONY:	build-darwin
 build-darwin:
 	mkdir -p bin/darwin
-	xgo -x -v -ldflags "-X main.Version='${CIRCLE_TAG}'" --targets=darwin/amd64 -out bin/darwin/${BINARY}-darwin-amd64 .
+	xgo -x -v -ldflags "-X main.Version='${CIRCLE_TAG}'" --targets=darwin/amd64 -out bin/darwin/${BINARY} .