lint_po regression: does not skip files in ./tmp/ anymore
The shell version of
check_po rightfully skipped files under
find -wholename ./tmp -prune). This is useful because some developers, in particular release managers, have PO files in there that we don't want to check. The new Python version has lost this property.
No big emergency but it would be sweet if that was fixed before next time we go through our release process (which typically triggers this problem).