safeeyes/safeeyes.py: Fix description of -s/--settings (slgobinath#778)

Regression from commit 5c4bfc6

Author: hartwork

safeeyes/safeeyes.py

@@ -73,7 +73,7 @@ def __register_cli_arguments(self):
         flags = [
             # startup window
             ("about", "a", _("show the about dialog")),
-            ("settings", "s", _("start safeeyes in debug mode")),
+            ("settings", "s", _("show the settings dialog")),
             ("take-break", "t", _("Take a break now").lower()),
             # activate action
             ("disable", "d", _("disable the currently running safeeyes instance")),