ref: b8739b70c8fbb2f8930c7cb2b1d1a6544aa7024f 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