fix naming

fix https://github.com/seaweedfs/seaweedfs/issues/4305

weed/shell/command_s3_bucket_list.go

@@ -63,7 +63,7 @@ func (c *commandS3BucketList) Do(args []string, commandEnv *CommandEnv, writer i
 			collectionSize = collectionInfo.Size
 			fileCount = collectionInfo.FileCount - collectionInfo.DeleteCount
 		}
-		fmt.Fprintf(writer, "  %s\tsize:%.0f\tfile:%.0f", entry.Name, collectionSize, fileCount)
+		fmt.Fprintf(writer, "  %s\tsize:%.0f\tchunk:%.0f", entry.Name, collectionSize, fileCount)
 		if entry.Quota > 0 {
 			fmt.Fprintf(writer, "\tquota:%d\tusage:%.2f%%", entry.Quota, float64(collectionSize)*100/float64(entry.Quota))
 		}