Fix long credentials when using auth in nnimap.el

* lisp/gnus/nnimap.el (nnimap-login): When base64-ing
credentials, don't let bsae64-encode-string split the result into
several lines, because servers do not understand that (bug#34458).

1 files changed, 4 insertions, 2 deletions

diff --git a/lisp/gnus/nnimap.el b/lisp/gnus/nnimap.el
index 9e52abc1ca7..06817f452d2 100644
--- a/lisp/gnus/nnimap.el
+++ b/lisp/gnus/nnimap.el
@@ -570,7 +570,8 @@ textual parts.")
         (base64-encode-string
          (concat user " "
                  (rfc2104-hash 'md5 64 16 password
-                               (base64-decode-string challenge))))
+                               (base64-decode-string challenge)))
+         t)
         "\r\n"))
       (nnimap-wait-for-response sequence)))
    ((and (not (nnimap-capability "LOGINDISABLED"))
@@ -586,7 +587,8 @@ textual parts.")
      (base64-encode-string
       (format "\000%s\000%s"
               (nnimap-quote-specials user)
-              (nnimap-quote-specials password)))))))
+              (nnimap-quote-specials password))
+      t)))))
 
 (defun nnimap-quote-specials (string)
   (with-temp-buffer