Freeze break request: EDS phone number support functions

[Mathias Hasselmann <mathias openismus com>]

Hi,

I want do land the attached patch. It adds GError arguments to 
the functions e_phone_number_get_country_code_for_region() and
e_phone_number_get_default_region(). This is to permit better error
handling and to avoid unit tests to break because of warnings, if phone
number support is missing.

The functions in question were newly introduced within the 3.8 cycle and
to far they only are used within EDS itself and outside of GNOME.

Ciao,
Mathias

Attachment: 0001-libebook-Report-missing-phone-number-support-by-GErr.patch
Description: Text Data