(gnus-agent-fetch-headers): Use `gnus-union' instead of `union'.

diff --git a/lisp/gnus-agent.el b/lisp/gnus-agent.el
index 5bfd446..7022a87 100644 (file)
--- a/lisp/gnus-agent.el
+++ b/lisp/gnus-agent.el
@@ -849,8 +849,8 @@ the actual number of articles toggled is returned."
           (setq articles (nthcdr i articles))))
     ;; add article with marks to list of article headers we want to fetch
     (dolist (arts (gnus-info-marks (gnus-get-info group)))
-      (setq articles (union (gnus-uncompress-sequence (cdr arts))
-                           articles)))
+      (setq articles (gnus-union (gnus-uncompress-sequence (cdr arts))
+                                articles)))
     (setq articles (sort articles '<))
     ;; remove known articles
     (when (gnus-agent-load-alist group)