narrow: move `testedwith` after module imports

PyCharm flagged this as a PEP 8 violation, for module level imports not being at
the top of the file.

Differential Revision: https://phab.mercurial-scm.org/D7734

hgext/narrow/__init__.py

@@ -1,78 +1,78 b''
 # __init__.py - narrowhg extension
 #
 # Copyright 2017 Google, Inc.
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 '''create clones which fetch history data for subset of files (EXPERIMENTAL)'''
 
 from __future__ import absolute_import
 
-# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
-# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
-# be specifying the version(s) of Mercurial they are tested with, or
-# leave the attribute unspecified.
-testedwith = b'ships-with-hg-core'
-
 from mercurial import (
     localrepo,
     registrar,
 )
 
 from mercurial.interfaces import repository
 
 from . import (
     narrowbundle2,
     narrowcommands,
     narrowrepo,
     narrowtemplates,
     narrowwirepeer,
 )
 
+# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
+# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
+# be specifying the version(s) of Mercurial they are tested with, or
+# leave the attribute unspecified.
+testedwith = b'ships-with-hg-core'
+
 configtable = {}
 configitem = registrar.configitem(configtable)
 # Narrowhg *has* support for serving ellipsis nodes (which are used at
 # least by Google's internal server), but that support is pretty
 # fragile and has a lot of problems on real-world repositories that
 # have complex graph topologies. This could probably be corrected, but
 # absent someone needing the full support for ellipsis nodes in
 # repositories with merges, it's unlikely this work will get done. As
 # of this writining in late 2017, all repositories large enough for
 # ellipsis nodes to be a hard requirement also enforce strictly linear
 # history for other scaling reasons.
 configitem(
     b'experimental',
     b'narrowservebrokenellipses',
     default=False,
     alias=[(b'narrow', b'serveellipses')],
 )
 
 # Export the commands table for Mercurial to see.
 cmdtable = narrowcommands.table
 
 
 def featuresetup(ui, features):
     features.add(repository.NARROW_REQUIREMENT)
 
 
 def uisetup(ui):
     """Wraps user-facing mercurial commands with narrow-aware versions."""
     localrepo.featuresetupfuncs.add(featuresetup)
     narrowbundle2.setup()
     narrowcommands.setup()
     narrowwirepeer.uisetup()
 
 
 def reposetup(ui, repo):
     """Wraps local repositories with narrow repo support."""
     if not repo.local():
         return
 
     repo.ui.setconfig(b'experimental', b'narrow', True, b'narrow-ext')
     if repository.NARROW_REQUIREMENT in repo.requirements:
         narrowrepo.wraprepo(repo)
         narrowwirepeer.reposetup(repo)
 
 
 templatekeyword = narrowtemplates.templatekeyword
 revsetpredicate = narrowtemplates.revsetpredicate