[log] Add LOG_FUNC_TRACE().
[log] Add LOG_FUNC_TRACE().

mit-carbon/Graphite-Cycle-Level,victorisildur/Graphite,fhijaz/Graphite,fhijaz/Graphite,nkawahara/Graphite,mit-carbon/Graphite,mit-carbon/Graphite,victorisildur/Graphite,nkawahara/Graphite,8l/Graphite,8l/Graphite,mit-carbon/Graphite,nkawahara/Graphite,mit-carbon/Graphite,8l/Graphite,fhijaz/Graphite,victorisildur/Graphite,nkawahara/Graphite,fhijaz/Graphite,8l/Graphite,mit-carbon/Graphite-Cycle-Level,victorisildur/Graphite,mit-carbon/Graphite-Cycle-Level,mit-carbon/Graphite-Cycle-Level