Fix: Unexported constructor for private struct

Makefile

@@ -17,4 +17,4 @@ test:
 				-D errcheck
 
 install:
-		go install -ldflags "-X main.version=$(shell git describe --tags || git rev-parse --short HEAD || echo dev)"
+		go install -a -ldflags "-X main.version=$(shell git describe --tags || git rev-parse --short HEAD || echo dev)"

bufferedLineWriter.go

@@ -8,7 +8,7 @@ type messageChanWriter struct {
 	buffer []byte
 }
 
-func NewMessageChanWriter(outputChannel chan string) *messageChanWriter {
+func newMessageChanWriter(outputChannel chan string) *messageChanWriter {
 	return &messageChanWriter{
 		msgChan: outputChannel,
 		buffer:  []byte{},

main.go

@@ -168,7 +168,7 @@ func execute(config *configFile, argv []string) error {
 		}
 	}(msgChan)
 
-	output := NewMessageChanWriter(msgChan)
+	output := newMessageChanWriter(msgChan)
 	cmd := exec.Command(duplicityBinary, commandLine...)
 	cmd.Stdout = output
 	cmd.Stderr = output