trivial comment update

License: MIT
Signed-off-by: Arthur Elliott <clownpriest@gmail.com>

merkledag/merkledag.go

@@ -6,9 +6,10 @@ import (
 	"fmt"
 	"sync"
 
+	blocks "gx/ipfs/QmVA4mafxbfH5aEvNz8fyoxC6J1xhAtw88B4GerPznSZBg/go-block-format"
+
 	bserv "github.com/ipfs/go-ipfs/blockservice"
 	offline "github.com/ipfs/go-ipfs/exchange/offline"
-	blocks "gx/ipfs/QmVA4mafxbfH5aEvNz8fyoxC6J1xhAtw88B4GerPznSZBg/go-block-format"
 
 	cid "gx/ipfs/QmTprEaAA2A9bst5XH7exuyi5KzNMK3SEDNN8rBDnKWcUS/go-cid"
 	ipldcbor "gx/ipfs/QmXgUVPAxjMLZSyxx818YstJJAoRg3nyPWENmBLVzLtoax/go-ipld-cbor"
@@ -32,8 +33,8 @@ type DAGService interface {
 	Get(context.Context, *cid.Cid) (node.Node, error)
 	Remove(node.Node) error
 
-	// GetDAG returns, in order, all the single leve child
-	// nodes of the passed in node.
+	// GetMany returns a channel of NodeOption given
+	// a set of CIDs
 	GetMany(context.Context, []*cid.Cid) <-chan *NodeOption
 
 	Batch() *Batch