localrepo: fix deprecation warning version of wfile The patch lingered a bit too long in my local clone and I messed up when I updated the version number. Since nobody caught it, I'm fixing the version after the fact.

util: explicitly tests for None Changeset 8b6927eb7efd removed the mutable default value, but did not explicitly tested for None. Such implicit checking can introduce semantic and performance issue. We move to an explicit check for None as recommended by PEP8: https://www.python.org/dev/peps/pep-0008/#programming-recommendations

context: simplify call to icase matcher in 'match()' The two function takes the very same arguments. We make this clearer and less error prone by dispatching on the function only and having a single call point in the code.