Author: Dan Poltawski
MDL-44433 lang: Update the name of country code CV
ISO-3166 has updated this name to Cabo Verde:
https://www.iso.org/obp/ui/#iso:code:3166:CV
http://git.moodle.org/gw?p=moodle.git;a=commit;h=06861f02ede9ce641539da63dfb24f6e09433046
http://github.com/moodle/moodle/commit/06861f02ede9ce641539da63dfb24f6e09433046
+ 2.5 en [CV,core_countries]