[PATCH] erc-track erases the modeline when new buffers are created

[Antoine Levitt]

When a new ERC buffer is created (for instance, a query) while erc-track
displays information in the mode line, the information is removed. I
tracked the bug down to an initialisation of
erc-modified-channels-object each time erc-track-mode is activated (ie,
each time an ERC buffer is created). This is useless because the
variable is initialised at load time with (defvar).

This patch simply removes the extra initialisation. I tested it, it
works for me and I don't see any potential bugs the removal might cause.

Antoine Levitt

=== modified file 'lisp/erc/erc-track.el'
--- lisp/erc/erc-track.el       2010-01-13 08:35:10 +0000
+++ lisp/erc/erc-track.el       2010-08-13 22:47:20 +0000
@@ -649,7 +649,6 @@
           (add-hook 'erc-send-completed-hook 'erc-user-is-active)
           (add-hook 'erc-server-001-functions 'erc-user-is-active))
        (erc-track-add-to-mode-line erc-track-position-in-mode-line)
-       (setq erc-modified-channels-object (erc-modified-channels-object nil))
        (erc-update-mode-line)
        (if (featurep 'xemacs)
           (defadvice switch-to-buffer (after erc-update (&rest args) activate)