Semi-automatic update generated by https://github.com/ryantm/nix-update tools. These checks were done:
- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 2.2.1 with grep in /nix/store/kpbzkj0s48h5mvvsvprqfqpah2kispil-openexr_viewers-2.2.1
- directory tree listing: https://gist.github.com/946b2664eb02e90d8d73194ffd04ac5f
f56f7a35ab