Bug#888549: chrome-gnome-shell: Please don't use /etc/opt, it's not FHS-compliant

[Santiago Vila]

Package: chrome-gnome-shell
Version: 9-2

Dear maintainers:

It has come to my attention (via Bug #888243) than this package uses /etc/opt.

The opt directories exist for "add-on" packages, i.e. those who are
not provided by Debian.

Well-behaved FHS-compliant packages should not use any of the opt
directories (/opt, /etc/opt or /var/opt).

Thanks.