If we got more then one file, only take those that contain the arch name.
For ubuntu 20.04 with host architecture x86_64 and a foreign architecture of armhf
this reduces the number of candidates to 1:
$ find /usr/lib/python3.8/ -name '_sysconfigdata*.py' -not -lname '*'
/usr/lib/python3.8/_sysconfigdata__x86_64-linux-gnu.py
/usr/lib/python3.8/_sysconfigdata__arm-linux-gnueabihf.py
CHANGELOG.md: add entry for cross-sysconfigdata filter on arch
commit changelog:
1. initial
2. if filtered list is empty, use pre filtered.
3. clippy is_empty and cloned
messense