improved lint error

Signed-off-by: keitosuwahara <[email protected]>

pkg/progress/json_test.go

@@ -86,4 +86,4 @@ func TestJsonWriter_TailMsgf(t *testing.T) {
 		Text: "hello world",
 	}
 	assert.DeepEqual(t, expected, actual)
-}
+}