3426: No "invalid_date_format" definition on peoplemodel

svn: r13739

src/gui/views/treemodels/peoplemodel.py

@@ -65,6 +65,7 @@ import ToolTips
 import GrampsLocale
 from Lru import LRU
 from gui.views.treemodels.treebasemodel import TreeBaseModel
+import config
 
 #-------------------------------------------------------------------------
 #
@@ -81,6 +82,8 @@ COLUMN_FAMILY = 8
 COLUMN_CHANGE = 17
 COLUMN_MARKER = 18
 
+invalid_date_format = config.get('preferences.invalid-date-format')
+
 #-------------------------------------------------------------------------
 #
 # PeopleModel