Sorted output

[lezsakdomi]

In #316 @simsong said, that -j1 should be used to fix output order. The documentation says to use -j0 for deterministic output. Neither works for me. Here is the demonstration: https://github.com/lezsakdomi/elte-mester-data/commit/576533c59d114aa341b3682c1c99877ffba319f9 Please see the chain of parent commits. Unless I do manual sort, the result is different for every commit (thus causing an infinite loop)