If the user sets --no-issue, we shouldn't attempt to CC radar (because that qualifies as "updating an issue").
<rdar://problem/112268906>
Pull request: https://github.com/WebKit/WebKit/pull/15839
Committed 266526@main (7072a0ccaa41): <https://commits.webkit.org/266526@main> Reviewed commits have been landed. Closing PR #15839 and removing active labels.