Anything when turn WP_DEBUG on?

Site Address (URL) https://localhost/

Shouldn’t it be a web-page like localhost/index.html or something?

I have WP_DEBUG and WP_DEBUG_LOG set to true but I’m not seeing any log in the wp-content folder.

For the error log after I type localhost in the browser:
[Sat Nov 11 13:57:00.448789 2017] [mpm_prefork:notice] [pid 20054] AH00169: caught SIGTERM, shutting down
[Sat Nov 11 13:57:01.577721 2017] [mpm_prefork:notice] [pid 20131] AH00163: Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.22 configured — resuming normal operations
[Sat Nov 11 13:57:01.577858 2017] [core:notice] [pid 20131] AH00094: Command line: ‘/usr/sbin/apache2’

From the access log:

127.0.0.1 – – [11/Nov/2017:17:40:30 -0800] “GET / HTTP/1.1” 304 178 “-” “Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:56.0) Gecko/20100101 Firefox/56.0”

Entering localhost/wordpress shows the default image for the site and navigation to the Admin panel at the top:

127.0.0.1 – – [11/Nov/2017:17:40:50 -0800] “GET /wordpress HTTP/1.1” 404 59584 “-” “Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:56.0) Gecko/20100101 Firefox/56.0”
(END)