LA is ISO country code for Laos https://secure.wikimedia.org/wikipedia/en/wiki/LA https://secure.wikimedia.org/wikipedia/en/wiki/Language_code - "es-419 – Spanish appropriate for the Latin America and Caribbean region" https://bugs.gentoo.org/show_bug.cgi?id=317665#c7 https://bugs.gentoo.org/show_bug.cgi?id=332751#c9
es-LA is what Opera, Inc. calls it. Please ask them to change this.