When iterating locales in the format chooser,
gnome_get_country_from_locale() is called for each of them to build the
locale label for the list row.
The function creating the label doesn't take into account that
gnome_get_country_from_locale() can return NULL, in which case it will
both:
- display an empty row in the list
- crash when later trying to find a word in a NULL string with strstr()
inside match_all()
Just avoid creating a widget in that case.
https://bugzilla.gnome.org/show_bug.cgi?id=742639
eb93004ead