in plugin/server_audit/server_audit.cc [2441:2457]
static void update_syslog_priority(MYSQL_THD thd __attribute__((unused)),
struct SYS_VAR *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
ulong new_priority= *((const ulong *) save);
if (syslog_priority == new_priority)
return;
mysql_prlock_wrlock(&lock_operations);
mark_always_logged(thd);
mysql_prlock_unlock(&lock_operations);
error_header();
fprintf(stderr, "SysLog priority was changed from '%s' to '%s'.\n",
syslog_priority_names[syslog_priority],
syslog_priority_names[new_priority]);
syslog_priority= new_priority;
}