added number of security upgrades text

lubuntu-notifier.py

@@ -119,6 +119,12 @@ class Dialog(QWidget):
             text += "\n"
             text += _("This will mean packages could be upgraded, installed or"
                       " removed.")
+            if self.security_upgrades > 0:
+                text += "\n" + str(self.security_upgrades)
+                if self.security_upgrades == 1:
+                    text += _(" is a security upgrade.")
+                else:
+                    text += _(" are security upgrades.")
 
             if len(pkg_delete) > 0:
                 toDelete = QTreeWidgetItem([_('Remove')])

po/es.po

@@ -85,7 +85,15 @@ msgstr ""
 msgid "This will mean packages could be upgraded, installed or removed."
 msgstr "Esto implica que paquetes pueden actualizarse, instalarse o removerse."
 
-#: lubuntu-notifier.py:109
+#: lubuntu-notifier.py:125
+msgid " is a security upgrade."
+msgstr " es una actualización de seguridad."
+
+#: lubuntu-notifier.py:127
+msgid " are security upgrades."
+msgstr " son actualizaciones de seguridad."
+
+#: lubuntu-notifier.py:127
 msgid "Remove"
 msgstr "Quitar"