`option2bool` reads an `enable-` option as on unless it is literally "N", while this one's
accessor required a literal "Y" - the name promised default-on and the code shipped
default-off. `allow-` is the prefix whose rule matches the behaviour that already ships, so
the rename settles the contradiction without moving a single user's transport.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019UzcMTdYTEv2QbMHcTSUy3