fix: better handling for /dev/null

[kelly-sovacool]

Changes

/dev/shm and /dev/null can be safely ignored

Issues

PR Checklist

(Strikethrough any points that are not applicable.)

• This comment contains a description of changes with justifications, with any relevant issues linked.
• Write unit tests for any new features, bug fixes, or other code changes.
• Update docs if there are any API changes.
• Update CHANGELOG.md with a short description of any user-facing changes and reference the PR number. Guidelines: https://keepachangelog.com/en/1.1.0/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.84%. Comparing base (c3f942d) to head (16e1f4c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #174   +/-   ##
=======================================
  Coverage   72.84%   72.84%           
=======================================
  Files          27       27           
  Lines        1889     1889           
=======================================
  Hits         1376     1376           
  Misses        513      513           

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