(defun ufile-pathname (ufile &optional (extension ""))
"Return pathname for a umls filename with an optional extension"
(assert (typep ufile 'ufile))
- (let* ((dirs (append (list (dir ufile))
- (awhen (subdir ufile) (list it))))
+ (let* ((dirs (nconc (list (dir ufile))
+ (awhen (subdir ufile) (list it))))
(name-list (delimited-string-to-list (fil ufile) #\.))
(name (if (second name-list)
(first name-list)