message: Update pre-commit to exclude pcb/ dir.
  The files in there are machine-generated, it's unclear if these
  whitespace checks are OK.
diff: @@ -34,15 +34,15 @@ repos:
  hooks:
  - id: check-yaml
  - id: end-of-file-fixer
  - exclude: ^gui/app/third_party
  + exclude: ^gui/app/third_party|^pcb/
  - id: trailing-whitespace
  - exclude: ^gui/app/third_party
  + exclude: ^gui/app/third_party|^pcb/
  - repo: https://github.com/Lucas-C/pre-commit-hooks
  rev: v1.1.7
  hooks:
  - id: remove-crlf
  - exclude: \.eps$
  + exclude: \.eps$|^pcb/
  - repo: local
  hooks:
  