LogDog: Fix archival Get/Tail implementations.

logdog/common/archive/archive.go

 // Copyright 2015 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 // Package archive constructs a LogDog archive out of log stream components.
 // Records are read from the stream and emitted as an archive.
 package archive
 
 import (
         "io"
 
-        "github.com/golang/protobuf/proto"
         "github.com/luci/luci-go/common/data/recordio"
         "github.com/luci/luci-go/common/errors"
         "github.com/luci/luci-go/common/logging"
         "github.com/luci/luci-go/common/sync/parallel"
         "github.com/luci/luci-go/logdog/api/logpb"
         "github.com/luci/luci-go/logdog/common/renderer"
+
+        "github.com/golang/protobuf/proto"
 )
 
 // Manifest is a set of archival parameters.
 type Manifest struct {
         // Desc is the logpb.LogStreamDescriptor for the stream.
         Desc *logpb.LogStreamDescriptor
         // Source is the LogEntry Source for the stream.
         Source renderer.Source
 
         // LogWriter, if not nil, is the Writer to which the log stream record stream
@@ skipping 151 matching lines @@
                 }
 
                 // Add this LogEntry to our index, noting the current offset.
                 if idx != nil {
                         idx.addLogEntry(le, offset)
                 }
                 err = out(le)
         }
         return err
 }