Bug#846145: Wrong path to php7.0-fpm.sock in sites-available/default

[Piotr Jurkiewicz]

Package: nginx-common
Version: 1.10.2-2

PHP snippet in sites-available/default points to:

        fastcgi_pass unix:/var/run/php7.0-fpm.sock;

However, php7.0-fpm package (Debian Stretch) places this socket in:

        /var/run/php/php7.0-fpm.sock

(notice additional 'php' directory)