Error in dvc-add-log-entry

Hi,

I switched from bazaar to hg. With the same version of DVC (119 from
http://bzr.xsteve.at/dvc/) the command dvc-add-log-entry works on
bazaar but not in hg. The message in Backtrace is:

Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  regexp-quote(nil)
  add-log-file-name("/home/users/dan/etc/emacs/planner-config.el" 
"++xhg-log-edit")
  dvc-add-log-entry-internal()
  dvc-add-log-entry()
  call-interactively(dvc-add-log-entry)

I didn't have enough time to search but it seems to be a issue with
the add-log-file-name second argument.

Best regards,
Dan