www/nginx: start only with nginx_checkconfig success

[kulikov-a]

Hi! Is it intentionall that nginx_prestart() ignores the nginx_checkconfig result? So it is possible that nginx will try to start with a known broken config? (which can lead, for example, to the prevention of subsequent starts if the listen socket is not deleted on failed startup). Thanks!

[jbeich]

Requires review/approval by @joneum (maintainer). Looks like this hasn't been submitted via bugzilla, so cannot land under "maintainer timeout".

[rosorio]

PR created: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276659