zeroconf: fix non existant formatting in the vendored zeroconf module
On Tue Mar 1st 2016 at 09:33:39 timeless decided to wrap long line in
`hgext/zeroconf/Zeroconf.py`. Doing so, he fat fingered a "%w" instead of a "%s"
in a string. %w does not exists, 4 year later, pyflakes (rightfully) complains
about it. So I am fixing it.
Differential Revision: https://phab.mercurial-scm.org/D8627
# Files that just need to be migrated to the formatter.
# Do not add new files here!
mercurial/cext/manifest.c
mercurial/cext/osutil.c
# Vendored code that we should never format:
syntax: glob
contrib/python-zstandard/**.c
contrib/python-zstandard/**.h
hgext/fsmonitor/pywatchman/**.c
mercurial/thirdparty/**.c
mercurial/thirdparty/**.h