Revert "Merge pull request #281 from thinxer/binary"

This reverts commit a87fe8ffce, reversing
changes made to 6876bfa685.

go/storage/file_id.go

@@ -1,12 +1,12 @@
 package storage
 
 import (
-	"encoding/binary"
 	"encoding/hex"
 	"errors"
 	"strings"
 
 	"github.com/chrislusf/seaweedfs/go/glog"
+	"github.com/chrislusf/seaweedfs/go/util"
 )
 
 type FileId struct {
@@ -34,8 +34,8 @@ func ParseFileId(fid string) (*FileId, error) {
 }
 func (n *FileId) String() string {
 	bytes := make([]byte, 12)
-	binary.BigEndian.PutUint64(bytes[0:8], n.Key)
-	binary.BigEndian.PutUint32(bytes[8:12], n.Hashcode)
+	util.Uint64toBytes(bytes[0:8], n.Key)
+	util.Uint32toBytes(bytes[8:12], n.Hashcode)
 	nonzero_index := 0
 	for ; bytes[nonzero_index] == 0; nonzero_index++ {
 	}