Log to stderr for pre-config-load

Author: thespad

root/etc/s6-overlay/s6-rc.d/svc-nginx/run

@@ -13,4 +13,4 @@ if pgrep -f "[n]ginx:" >/dev/null; then
     sleep 1
 fi
 
-exec /usr/sbin/nginx
+exec /usr/sbin/nginx -e stderr