[util] add error buffer for EasyCurl wrapper

Enabled CURLOPT_ERRORBUFFER option for the EasyCurl utility wrapper.
This is to help collecting additional information on the error occurred,
if any.

Change-Id: I6e4a8a8a42671f141842ff6051aa18820a8f7f5a
Reviewed-on: http://gerrit.cloudera.org:8080/15101
Tested-by: Kudu Jenkins
Reviewed-by: Adar Dembo <adar@cloudera.com>
Reviewed-by: Volodymyr Verovkin <verjovkin@cloudera.com>
2 files changed