Replace timestamp option by letter t

packet-exchange/src/client.c

@@ -147,7 +147,7 @@ int main(int argc, char *argv[]) {
 static void process_options(int argc, char *argv[], thread_param_t *param,
                             main_param_t *main_param) {
   for (;;) {
-    int c = getopt(argc, argv, "aehf:i:l:p:q:r:");
+    int c = getopt(argc, argv, "aef:i:l:p:q:r:t");
 
     if (c == -1) break;
 
@@ -158,9 +158,6 @@ static void process_options(int argc, char *argv[], thread_param_t *param,
       case 'e':
         param->enable_etf = 1;
         break;
-      case 'h':
-        param->enable_timestamps = 1;
-        break;
       case 'f':
         strcpy(param->network_if, optarg);
         break;
@@ -179,6 +176,9 @@ static void process_options(int argc, char *argv[], thread_param_t *param,
       case 'r':
         main_param->refresh_rate = atoi(optarg);
         break;
+      case 't':
+        param->enable_timestamps = 1;
+        break;
       default:
         exit(EXIT_FAILURE);
         break;