Fixing a few last cppcheck errors/warnings

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

common/utils/T/tracer/gui/notify.c

@@ -46,7 +46,7 @@ void unregister_notifier(gui *_g, unsigned long notifier_id) {
     if (g->notifiers[i].id == notifier_id) break;
 
   if (i == g->notifiers_count)
-    ERR("%s:%d: notifier_id %ld not found\n", __FILE__,__LINE__,notifier_id);
+    ERR("%s:%d: notifier_id %lu not found\n", __FILE__,__LINE__,notifier_id);
 
   free(g->notifiers[i].notification);
   memmove(g->notifiers + i, g->notifiers + i + 1,

common/utils/T/tracer/multi.c

@@ -261,6 +261,7 @@ int main(int n, char **v)
       if (fds == NULL) { perror("calloc"); exit(1); }
     }
     i = 0;
+    if (fds == NULL) { perror("null fds pointer"); exit(1); }
     fds[i].fd = l;
     fds[i].events = POLLIN;
     i++;

common/utils/T/tracer/textlog.c

@@ -195,5 +195,10 @@ int main(int n, char **v)
     handle_event(h, e);
   }
 
+  if (on_off_name != NULL)
+    free(on_off_name);
+  if (on_off_action != NULL)
+    free(on_off_action);
+
   return 0;
 }

common/utils/T/tracer/utils.c

@@ -273,6 +273,6 @@ void PUTX2(OBUF *o, int i) {
 
 void PUTUL(OBUF *o, unsigned long l) {
   char s[128];
-  sprintf(s, "%ld", l);
+  sprintf(s, "%lu", l);
   PUTS(o, s);
 }