GitLab

luci-milo.cfg linter: Lint bot category, and check that each toplevel category on the main waterfall has a subwaterfall.

Also tweak a few categories to make main and subwaterfalls match.

Bug: none
Change-Id: I15ac12e6854be01af39da8869b87102ec17f305a
Reviewed-on: https://chromium-review.googlesource.com/c/1346731Reviewed-by: Ryan Tseng <hinoka@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610112}