0939b630

By: Greg Pfeil <greg@technomadic.org>

Get the ShellCheck module working

There were a bunch of small issues in the way here

- older Nixpkgs conflicted with the `lint-short-path-literals` setting, so we
  had to skip evaluating `gnome2` in those;
- for some reason, the `shellcheck` check would only ever run on one file … and
  a file that only exists in this repo, nothing downstream; and
- there was no way to specify files that ShellCheck should check.

After these changes, this repo correctly inherits the directives from Flaky, and
so we could remove one manually-specified directive from project-manager.bash.

And this enables the ShellCheck module explicitly so that it’s tested here,
rather than simply relying on the Treefmt handling.
formatterformatter-22_11formatter-23_05formatter-23_11formatter-24_05formatter-24_11formatter-25_05formatter-25_11formatter-26_11project-manager-filesproject-manager-files-22_11project-manager-files-23_05project-manager-files-23_11project-manager-files-24_05project-manager-files-24_11project-manager-files-25_05project-manager-files-25_11project-manager-files-26_11shellcheckshellcheck-22_11shellcheck-23_05shellcheck-23_11shellcheck-24_05shellcheck-24_11shellcheck-25_05shellcheck-25_11shellcheck-26_11testsvalevale-22_11vale-23_05vale-23_11vale-24_05vale-24_11vale-25_05vale-25_11vale-26_11configuredevShellproject-managerx86_64-linuxdefaultdocs-htmldocs-jsondocs-manpagesproject-managerx86_64-linux