Merge pull request #5312 from vjFaLk/leave-app-fix

Fixed Leave Approver issue
diff --git a/erpnext/hr/doctype/employee_leave_approver/employee_leave_approver.py b/erpnext/hr/doctype/employee_leave_approver/employee_leave_approver.py
index 061f606..fb58d75 100755
--- a/erpnext/hr/doctype/employee_leave_approver/employee_leave_approver.py
+++ b/erpnext/hr/doctype/employee_leave_approver/employee_leave_approver.py
@@ -21,4 +21,4 @@
 		user_role.role = "Leave Approver"
 		and user_role.parent = user.name and
 		user.name != %s 
-		""", name)
\ No newline at end of file
+		""", name or "")
\ No newline at end of file