# Generic checks that are run for the updates and deletes of
# node, ways and relations. This code is here to avoid duplication,
- # and allow the extention of the checks without having to modify the
+ # and allow the extension of the checks without having to modify the
# code in 6 places for all the updates and deletes. Some of these tests are
# needed for creates, but are currently not run :-(
# This will throw an exception if there is an inconsistency