013acac's update (in use 2026-08-14 to 2026-10-19) copies the new update
over itself with sudo cp while bash is still reading it, so bash reads on
from byte 1484 of the new file: today, the middle of the logo, and the
update dies with a syntax error. Put a line at exactly that byte that
execs the new update, in a here-document a normal run skips. Found by
30-upgrade-from-baseline at ca658dc; the test replays 013acac's update.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>