[minor] enabled allow error traceback ins system settings

frappe/patches.txt

@@ -184,4 +184,5 @@ frappe.patches.v8_0.rename_print_to_printing
 frappe.patches.v7_1.disabled_print_settings_for_custom_print_format
 frappe.patches.v8_0.update_desktop_icons
 frappe.patches.v8_0.update_gender_and_salutation
-execute:frappe.db.sql('update tabReport set module="Desk" where name="ToDo"')
+execute:frappe.db.sql('update tabReport set module="Desk" where name="ToDo"')
+erpnext.patches.v8_1.enable_allow_error_traceback_in_system_settings

frappe/patches/v8_1/enable_allow_error_traceback_in_system_settings.py

@@ -0,0 +1,15 @@
+# Copyright (c) 2017, Frappe and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	""" enable the allow_enable_traceback property in system settings """
+
+	frappe.reload_doc("core", "doctype", "system_settings")
+	doc = frappe.get_doc("System Settings", "System Settings")
+	doc.allow_error_traceback = 1
+	doc.flags.ignore_permissions=True
+	doc.flags.ignore_mandatory=True
+	doc.save()