[warn] the “ssl“ directive is deprecated, use the “listen ... ssl“ directive instead in /etc/nginx/c

nginx配置包warn如下：

[warn] the "ssl" directive is deprecated, use the "listen ... ssl" directive instead in /etc/nginx/conf.d/wangxu.conf:92

ssl on;

http1.1之后需要改成：

listen 443 ssl http2;