Function luaopen_utf8

ThirdParty/lua/lua/lutf8lib.c:249–254

LUAMOD_API int luaopen_utf8 (lua_State *L) {
  luaL_newlib(L, funcs);
  lua_pushliteral(L, UTF8PATT);
  lua_setfield(L, -2, "charpattern");
  return 1;
}