                 
                 (if other-window (display-buffer buf) (switch-to-buffer buf))
                 buf)))
-	(error "Did not find %s in the ros package list." package-name)))))
+        (error "Did not find %s in the ros package list." package-name)))))
 
 (defun ros-launch-current ()
   (interactive)

  (dolist (topic ros-topics)
    (when (string-match topic-regexp topic)
      (unless (assoc topic ros-topic-last-hz-rate)
	(start-hz-tracker topic)))))


(defun remove-hz-update (topic-regexp)

(defun ros-completing-read-pkg-file (prompt &optional default-pkg)
  (if (eq ros-completion-function 'ido-completing-read)
      (ros-ido-completing-read-pkg-file prompt default-pkg)
    (funcall ros-completion-function prompt ros-package-completor nil nil
             (when default-pkg
               (list default-pkg)))))

;; Ido completion
(defun ros-ido-completing-read-pkg-file (prompt &optional default-pkg)
