Drift: Log agg/key/val

https://github.com/openpmix/pmix-tests/blob/08705b12294fc5020f2af951b9bb10b36b6cec8d/check-standard/etc/openpmix_master-pmix-standard_master.txt#L29-L36

```
#---------------------------------------------------------
# Needs Review:
#  OpenPMIx: d490e100a
#  OpenPMIx PR: 
#---------------------------------------------------------
PMIX_LOG_AGG
PMIX_LOG_KEY
PMIX_LOG_VAL
```