The next commit will add this to a `.git-blame-ignore-revs` file which
you can use to ignore this commit when running git blame. Simply run
git blame --ignore-revs-file .git-blame-ignore-revs [...]
Or configure git to persistently ignore the commit:
git config blame.ignoreRevsFile .git-blame-ignore-revs
Otherwise, we're waiting 1s on pretty much any call to the display. If
the display gets disconnected at the start of the `update_display()`
function, that can mean quite the delay.
It's possible that this delay triggers a watchdog timer that blinks the
LEDs, but there doesn't appear to be any watchdog timer configured.
