ref: 2e1ba4c068a5a5a19fd138d6de8c34561b02d5c9 dir: /test/data/stdsort-expected/
0 1 2 3 4 5 6 7 8 9 --- 1 2 3 4 5 6 7 8 9 10 --- C Cc a aa b cC d f fuckit go