luaL_addstring    347 lib/lua/lauxlib.c     luaL_addstring(&b, r);  /* push replacement in place of pattern */
luaL_addstring    350 lib/lua/lauxlib.c   luaL_addstring(&b, s);  /* push last suffix */
luaL_addstring    148 lib/lua/lauxlib.h LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);