go fmt

weed/server/volume_grpc_copy.go

@@ -204,7 +204,7 @@ func (vs *VolumeServer) CopyFile(req *volume_server_pb.CopyFileRequest, stream v
 		baseFileName := erasure_coding.EcShardBaseFileName(req.Collection, int(req.VolumeId)) + req.Ext
 		for _, location := range vs.store.Locations {
 			tName := path.Join(location.Directory, baseFileName)
-			if util.FileExists(tName){
+			if util.FileExists(tName) {
 				fileName = tName
 			}
 		}