[accerciser] Show event sender only if different from the object application

[Samuel Thibault <sthibaul src gnome org>]

commit bddfd4d7fc9cd15f7a845148e1c20c4407c07251
Author: Samuel Thibault <samuel thibault ens-lyon org>
Date:   Sat Jul 27 15:02:17 2019 +0200

    Show event sender only if different from the object application

 plugins/event_monitor.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plugins/event_monitor.py b/plugins/event_monitor.py
index 6c2c005..08b8a13 100644
--- a/plugins/event_monitor.py
+++ b/plugins/event_monitor.py
@@ -329,7 +329,7 @@ class EventMonitor(ViewportPlugin):
     self._writeText('\n\tapplication: ')
     hyperlink = self._createHyperlink(event.host_application)
     self._writeText(str(event.host_application), hyperlink)
-    if hasattr(event, "sender"):
+    if hasattr(event, "sender") and event.sender != event.host_application:
         self._writeText('\n\tsender: ')
         hyperlink = self._createHyperlink(event.sender)
         self._writeText(str(event.sender), hyperlink)