ocamlPackages.ocamlbuild: 0.11.0 -> 0.12.0

Semi-automatic update generated by https://github.com/ryantm/nix-update tools. These checks were done:

- built on NixOS
- ran `/nix/store/b1b0f9iyawv0rm483q2fbbfhgjgpjdik-ocamlbuild-0.12.0/bin/ocamlbuild --help` got 0 exit code
- ran `/nix/store/b1b0f9iyawv0rm483q2fbbfhgjgpjdik-ocamlbuild-0.12.0/bin/ocamlbuild --version` and found version 0.12.0
- ran `/nix/store/b1b0f9iyawv0rm483q2fbbfhgjgpjdik-ocamlbuild-0.12.0/bin/ocamlbuild --help` and found version 0.12.0
- ran `/nix/store/b1b0f9iyawv0rm483q2fbbfhgjgpjdik-ocamlbuild-0.12.0/bin/ocamlbuild.native --help` got 0 exit code
- ran `/nix/store/b1b0f9iyawv0rm483q2fbbfhgjgpjdik-ocamlbuild-0.12.0/bin/ocamlbuild.native --version` and found version 0.12.0
- ran `/nix/store/b1b0f9iyawv0rm483q2fbbfhgjgpjdik-ocamlbuild-0.12.0/bin/ocamlbuild.native --help` and found version 0.12.0
- found 0.12.0 with grep in /nix/store/b1b0f9iyawv0rm483q2fbbfhgjgpjdik-ocamlbuild-0.12.0
- directory tree listing: https://gist.github.com/3b75d2c602f455856f9642228b53d2e7