Merge pull request #43 from jeanlaurent/windows-makefile

Add .exe to windows Makefile target
diff --git a/Makefile b/Makefile
index ea331ce..eba5920 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@
 
 wincred:
 	mkdir -p bin
-	go build -o bin/docker-credential-wincred wincred/cmd/main_windows.go
+	go build -o bin/docker-credential-wincred.exe wincred/cmd/main_windows.go
 
 test:
 	# tests all packages except vendor