Use repo vfs to join the server log
The method join on repo has been removed in changeset edb7f628ef8b of
mercurial.
Document: mercurial-server
Title: mercurial-server manual
Section: Programming
Format: HTML
Index: /usr/share/doc/mercurial-server/html/index.html
Files: /usr/share/doc/mercurial-server/html/*.html