Rename test-data to testdata, go will ignore it automatically

pkg/utils/split/split_test.go

@@ -53,9 +53,9 @@ func (s *MySuite) TestSplitStream(c *C) {
 }
 
 func (s *MySuite) TestFileSplitJoin(c *C) {
-	err := split.FileWithPrefix("test-data/TESTFILE", 1024, "TESTPREFIX")
+	err := split.FileWithPrefix("testdata/TESTFILE", 1024, "TESTPREFIX")
 	c.Assert(err, IsNil)
-	err = split.FileWithPrefix("test-data/TESTFILE", 1024, "")
+	err = split.FileWithPrefix("testdata/TESTFILE", 1024, "")
 	c.Assert(err, Not(IsNil))
 
 	devnull, err := os.OpenFile(os.DevNull, 2, os.ModeAppend)