Simon Willnauer 59cda81b40 Fix create_bwc_index for 5.x (#19469)
`create_bwc_index.py` has some cruft in it that only works on 2.x or
even before. This commit make the tool functional, yet there might still
be some bwc relevant things missing here.

Closes #19253
2016-07-18 12:23:01 +02:00
..