php/7.3/alpine3.8
Tianon Gravi ea377551f7 Adjust "/var/www/html" permissions consistently across variants
The issue speaks for itself:

```console
$ docker run --rm php:apache ls -ld /var/www/html
drwxrwxrwx 2 www-data www-data 4096 Jan 22 21:56 /var/www/html

$ docker run --rm php:fpm ls -ld /var/www/html
drwxr-xr-x 2 root root 4096 Jan 22 22:10 /var/www/html
```
2019-01-31 14:45:15 -08:00
..
cli Adjust "/var/www/html" permissions consistently across variants 2019-01-31 14:45:15 -08:00
fpm Adjust "/var/www/html" permissions consistently across variants 2019-01-31 14:45:15 -08:00
zts Adjust "/var/www/html" permissions consistently across variants 2019-01-31 14:45:15 -08:00