[PR PATCH] [Closed]: Use the samba-provided CHECK_CFG method in configuration tests

[github at samba.org]

There's a closed pull request on the Samba Samba Github repository

Use the samba-provided CHECK_CFG method in configuration tests
https://github.com/samba-team/samba/pull/8
Description: This is for forward compatibility with waf 1.8. All other tests
use CHECK_CFG, but check_cfg was re-introduced for some reason.