Alexey Melnichuk c597521228 Change. Use string value to represent error category.
```Lua
err = curl.error(curl.ERROR_EASY, curl.E_OK)
-- err:category() == 'CURL-EASY'
-- tostring(err) == '[CURL-EASY][OK] No error (0)'
```
2016-04-15 16:19:57 +03:00
..
2014-11-02 05:53:30 +06:00
2014-12-22 14:18:49 +04:00