Description of problem:
If we set client-log-level option to TRACE, the behavior was not as expected.

Version-Release number of selected component (if applicable):
mainline

How reproducible:
100%

Steps to Reproduce:
1. glusterd;  create volume; start volume; mount volume;
2. gluster volume set volume client-log-level TRACE
3. Notice that the client log file is not dumping all the TRACE level logs.

4. gluster volume set volume brick-log-level TRACE
5. Notice that the brick log file is not dumping all the TRACE level logs.



Actual results:
No proper logging, causing issues with debugging.

Expected results:
Log files should start showing corresponding level logs immediately.


Additional info:
Looks like this got introduced by https://review.gluster.org/21470