error: Use error_report_err() where appropriate (again)

Same Coccinelle semantic patch as in commit 565f65d.

We now use the original error whole instead of just its message
obtained with error_get_pretty().  This avoids suppressing its hint
(see commit 50b7b00), but I don't think the errors touched in this
commit can come with hints.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1450452927-8346-3-git-send-email-armbru@redhat.com>

hw/arm/netduino2.c

@@ -38,7 +38,7 @@ static void netduino2_init(MachineState *machine)
     qdev_prop_set_string(dev, "cpu-model", "cortex-m3");
     object_property_set_bool(OBJECT(dev), true, "realized", &err);
     if (err != NULL) {
-        error_report("%s", error_get_pretty(err));
+        error_report_err(err);
         exit(1);
     }
 }