Retrieves the current two-letter country code that's used by default for parsing phone numbers in phone_number_from_string.
It can be useful to store this number before parsing a bigger number of phone numbers.
The result of this functions depends on the current setup of the LC_ADDRESS category: If that category provides a reasonable
value for _NL_ADDRESS_COUNTRY_AB2 this value is returned. Otherwise the locale name configured for LC_ADDRESS is
parsed.
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a newly allocated string containing the current locale's two-letter code for phone number parsing. |