Bug#823221: evince: Menu description misleading

[José Luis González]

Package: evince-common
Version: 3.20.0-1

The description of evince in system menus only says "Document viewer",
implying it can view any (or almost any) kind of document, which is
false. A person that doesn't know what "Document viewer" is will not
know what it will be for.

Since it can view PDF PostScript and XPS, please say "PDF, PS and XPS
document viewer", or "PDF, PS and XPS viewer".

Thanks in advance.