join: remove uses of repo.join/wjoin Upstream Mercurial has dropped these functions as of 4.3. Let's switch to the appropriate repo.[w]vfs.join functions.

#!/bin/sh
. $(dirname $0)/common.sh

for b in `hg branches -aq` ; do
    hg co $b || break
    echo verifying $b
    hg svn verify
done