diff --git a/weed/command/filer_backup.go b/weed/command/filer_backup.go
index 8cb7441f6..888b46fe7 100644
--- a/weed/command/filer_backup.go
+++ b/weed/command/filer_backup.go
@@ -155,4 +155,3 @@ func doFilerBackup(grpcDialOption grpc.DialOption, backupOption *FilerBackupOpti
 	})
 
 }
-
diff --git a/weed/replication/sink/azuresink/azure_sink.go b/weed/replication/sink/azuresink/azure_sink.go
index 865f1b25c..d13a1049b 100644
--- a/weed/replication/sink/azuresink/azure_sink.go
+++ b/weed/replication/sink/azuresink/azure_sink.go
@@ -42,7 +42,7 @@ func (g *AzureSink) IsIncremental() bool {
 }
 
 func (g *AzureSink) Initialize(configuration util.Configuration, prefix string) error {
-	g.isIncremental = configuration.GetBool(prefix+"is_incremental")
+	g.isIncremental = configuration.GetBool(prefix + "is_incremental")
 	return g.initialize(
 		configuration.GetString(prefix+"account_name"),
 		configuration.GetString(prefix+"account_key"),
diff --git a/weed/replication/sink/b2sink/b2_sink.go b/weed/replication/sink/b2sink/b2_sink.go
index 8738231d5..90a0bb2e8 100644
--- a/weed/replication/sink/b2sink/b2_sink.go
+++ b/weed/replication/sink/b2sink/b2_sink.go
@@ -14,10 +14,10 @@ import (
 )
 
 type B2Sink struct {
-	client      *b2.Client
-	bucket      string
-	dir         string
-	filerSource *source.FilerSource
+	client        *b2.Client
+	bucket        string
+	dir           string
+	filerSource   *source.FilerSource
 	isIncremental bool
 }
 
@@ -38,7 +38,7 @@ func (g *B2Sink) IsIncremental() bool {
 }
 
 func (g *B2Sink) Initialize(configuration util.Configuration, prefix string) error {
-	g.isIncremental = configuration.GetBool(prefix+"is_incremental")
+	g.isIncremental = configuration.GetBool(prefix + "is_incremental")
 	return g.initialize(
 		configuration.GetString(prefix+"b2_account_id"),
 		configuration.GetString(prefix+"b2_master_application_key"),
diff --git a/weed/replication/sink/filersink/filer_sink.go b/weed/replication/sink/filersink/filer_sink.go
index 4165e87be..d7c5fccc3 100644
--- a/weed/replication/sink/filersink/filer_sink.go
+++ b/weed/replication/sink/filersink/filer_sink.go
@@ -30,7 +30,7 @@ type FilerSink struct {
 	grpcDialOption    grpc.DialOption
 	address           string
 	writeChunkByFiler bool
-	isIncremental bool
+	isIncremental     bool
 }
 
 func init() {
@@ -50,7 +50,7 @@ func (fs *FilerSink) IsIncremental() bool {
 }
 
 func (fs *FilerSink) Initialize(configuration util.Configuration, prefix string) error {
-	fs.isIncremental = configuration.GetBool(prefix+"is_incremental")
+	fs.isIncremental = configuration.GetBool(prefix + "is_incremental")
 	return fs.DoInitialize(
 		"",
 		configuration.GetString(prefix+"grpcAddress"),
diff --git a/weed/replication/sink/gcssink/gcs_sink.go b/weed/replication/sink/gcssink/gcs_sink.go
index 02f482862..5cf5b7317 100644
--- a/weed/replication/sink/gcssink/gcs_sink.go
+++ b/weed/replication/sink/gcssink/gcs_sink.go
@@ -18,10 +18,10 @@ import (
 )
 
 type GcsSink struct {
-	client      *storage.Client
-	bucket      string
-	dir         string
-	filerSource *source.FilerSource
+	client        *storage.Client
+	bucket        string
+	dir           string
+	filerSource   *source.FilerSource
 	isIncremental bool
 }
 
@@ -42,7 +42,7 @@ func (g *GcsSink) IsIncremental() bool {
 }
 
 func (g *GcsSink) Initialize(configuration util.Configuration, prefix string) error {
-	g.isIncremental = configuration.GetBool(prefix+"is_incremental")
+	g.isIncremental = configuration.GetBool(prefix + "is_incremental")
 	return g.initialize(
 		configuration.GetString(prefix+"google_application_credentials"),
 		configuration.GetString(prefix+"bucket"),
diff --git a/weed/storage/needle/needle_read_write.go b/weed/storage/needle/needle_read_write.go
index 0f72bc0bb..e51df955e 100644
--- a/weed/storage/needle/needle_read_write.go
+++ b/weed/storage/needle/needle_read_write.go
@@ -168,7 +168,7 @@ func ReadNeedleBlob(r backend.BackendStorageFile, offset int64, size Size, versi
 	}
 	if err != nil {
 		fileSize, _, _ := r.GetStat()
-		println("n",n, "dataSize", dataSize, "offset", offset, "fileSize", fileSize)
+		println("n", n, "dataSize", dataSize, "offset", offset, "fileSize", fileSize)
 	}
 	return dataSlice, err