sync with mainline spec file
order configure options alphabetically for easier comparinggit
add --with-compat option (rhbz#1834452)
add patch to fix PIDFile race condition (rhbz#1869026)
use pcre2 instead of pcre (rhbz#1938984)
add Wants=network-online.target to systemd unit (rhbz#1943779)
`nginx -t` creates the file /run/nginx.pid if it doesn't exist. `nginx -t` is
executed by ExecStartPre (in nginx.service) and creates /run/nginx.pid with the
correct SELinux context. However, when manually running `nginx -t` from the
cmdline, the SELinux transition for systemd services doesn't occur and
/run/nginx.pid is created with the wrong SELinux context. A workaround is to
make sure that the PID file is removed before starting nginx.