Inhibit backups properly

Author: vroide

cider-util.el

@@ -542,7 +542,7 @@ Any other value is just returned."
   (let (;; Don't create any temporary files.
         (remote-file-name-inhibit-locks t)
         (remote-file-name-inhibit-auto-save-visited t)
-        (backup-inhibited t)
+        (make-backup-files nil)
         (auto-save-default nil)
         ;; Disable version-control check
         (vc-handled-backends nil))