* Work around flow trace's data race bug
BaseTraceEvent::setNetworkThread() and flushTraceFile[()|Void()]
has a long-standing race condition for traceEventThrottlerCache global
when flushTraceFileVoid() is not called from the network thread.
This race dates back to 2017 (commit hash 80e5fecfe2),
so before the race itself is fixed, work around the problem.
* Remove call to flushTraceFileVoid() from MkCertCli
* Apply clang format
Markus Pilman