extract the gettext metadata header from the boost read .mo file bypassing empty string checks

boost_get_gettext_meta.cpp

// Should be used when the locale is avaible
template<typename MsgFormat>
std::string get_gettext_meta(const char* domain, std::locale& loc)
{
    boost::locale::message_format<char> const* facet = 0;
    facet = &std::use_facet<MsgFormat>(loc);
    const char* kek = facet->get(facet->domain(domain), NULL, "");
    std::string cheburek;
    if(kek != NULL) {
      cheburek = std::string(kek);
    }

    return cheburek;
}