Adjust regexp for parsing IMAP header response

* lisp/gnus/nnimap.el (nnimap-transform-headers): The first header
might have no value, or a continuation header might start with a
newline.

diff --git a/lisp/gnus/nnimap.el b/lisp/gnus/nnimap.el
index 49b997cb0b8086854412ada99b91f22a9a4ac08a..ad2b1a4fb636c10f2797058f267196e8f307db24 100644 (file)
--- a/lisp/gnus/nnimap.el
+++ b/lisp/gnus/nnimap.el
@@ -270,7 +270,7 @@ textual parts.")
                  (forward-line)
                  (null (looking-at-p
                         ;; We're expecting a mail header.
-                        "^[!-9;-~]+: "))))
+                        "^[!-9;-~]+:[[:space:]]"))))
            (delete-region (line-beginning-position)
                           (1+ (line-end-position)))
          (setq lines nil)