This patch adds a missing string to nautilus

["Francisco Javier F. Serrador" <serrador tecknolabs com>]

http://bugzilla.gnome.org/show_bug.cgi?id=342139

I'm waiting for permission to apply this patch so that string can be
translated.

Ok to commit also in gnome-2-14 branch? 
The string is not new, it is there but not internationalized.

Cheers