parallel: 20180122 -> 20180222

Semi-automatic update. These checks were done:

- built on NixOS
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parallel -h` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parallel --help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parallel -V` and found version 20180222
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parallel --version` and found version 20180222
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/sql -V` and found version 20180222
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/sql --version` and found version 20180222
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/niceload -h` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/niceload --help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/niceload -V` and found version 20180222
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/niceload --version` and found version 20180222
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parcat -h` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parcat --help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parcat help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parset -h` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parset --help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/parset help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel -h` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel --help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel.bash -h` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel.bash --help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel.bash help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel.sh -h` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel.sh --help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/env_parallel.sh help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/.parallel-wrapped -h` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/.parallel-wrapped --help` got 0 exit code
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/.parallel-wrapped -V` and found version 20180222
- ran `/nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222/bin/.parallel-wrapped --version` and found version 20180222
- found 20180222 with grep in /nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222
- found 20180222 in filename of file in /nix/store/yianx0n1hidxg0x1wkra3h6bi4gir88l-parallel-20180222