fix some typos

go/storage/needle_read_write.go

@@ -35,7 +35,7 @@ func (n *Needle) Append(w io.Writer, version Version) (size uint32, err error) {
 				}
 			}(s, end)
 		} else {
-			err = fmt.Errorf("Cnnot Read Current Volume Position: %s", e.Error())
+			err = fmt.Errorf("Cannot Read Current Volume Position: %s", e.Error())
 			return
 		}
 	}

go/storage/store.go

@@ -64,7 +64,7 @@ func (mn *MasterNodes) findMaster() (string, error) {
 		}
 	}
 	if mn.lastNode < 0 {
-		return "", errors.New("No master node avalable!")
+		return "", errors.New("No master node available!")
 	}
 	return mn.nodes[mn.lastNode], nil
 }

go/storage/volume.go

@@ -175,7 +175,7 @@ func (v *Volume) write(n *Needle) (size uint32, err error) {
 	}
 	var offset int64
 	if offset, err = v.dataFile.Seek(0, 2); err != nil {
-		glog.V(0).Infof("faile to seek the end of file: %v", err)
+		glog.V(0).Infof("failed to seek the end of file: %v", err)
 		return
 	}
 

go/topology/topology.go

@@ -119,7 +119,7 @@ func (t *Topology) HasWritableVolume(option *VolumeGrowOption) bool {
 func (t *Topology) PickForWrite(count int, option *VolumeGrowOption) (string, int, *DataNode, error) {
 	vid, count, datanodes, err := t.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl).PickForWrite(count, option)
 	if err != nil || datanodes.Length() == 0 {
-		return "", 0, nil, errors.New("No writable volumes avalable!")
+		return "", 0, nil, errors.New("No writable volumes available!")
 	}
 	fileId, count := t.Sequence.NextFileId(count)
 	return storage.NewFileId(*vid, fileId, rand.Uint32()).String(), count, datanodes.Head(), nil

go/weed/weed_server/volume_server_handlers_helper.go

@@ -93,7 +93,7 @@ func (w *countingWriter) Write(p []byte) (n int, err error) {
 	return len(p), nil
 }
 
-// rangesMIMESize returns the nunber of bytes it takes to encode the
+// rangesMIMESize returns the number of bytes it takes to encode the
 // provided ranges as a multipart response.
 func rangesMIMESize(ranges []httpRange, contentType string, contentSize int64) (encSize int64) {
 	var w countingWriter