message: fix typo in the help output
diff: @@ -76,7 +76,7 @@ void print_usage(const string progname)
  cerr << " -f | /f => enforce flushing each line for interactive output\n";
  cerr << " -i[=number] | /i[=number] => allow to determine number of iterations\n";
  cerr << " -tr | /tr => transpose output (print single event data in a row)\n";
  - cerr << " -el event_list.txt | /tr event_list.txt => read event list from event_list.txt file, \n";
  + cerr << " -el event_list.txt | /el event_list.txt => read event list from event_list.txt file, \n";
  cerr << " each line represents an event,\n";
  cerr << " event groups are separated by a semicolon\n";
  print_help_force_rtm_abort_mode(41);
  