new request of suggection

[LouisYuBin]

Several sites might running in a same fpm environment,some of them use seaslog as log module,but others are not . php error of sites not using seaslog as log module is written in /var/log/www/* as default.but fpm might not have the permission to write /var/log/www/*,so fpm will get signal 11 and crash.so I hope that the log can be written to the location where the site is located.