[Fix #798] Prompt for confirmation in prelude-kill-other-buffers

core/prelude-core.el

@@ -357,11 +357,12 @@ Repeated invocations toggle between the two most recently open buffers."
   "Kill all buffers but the current one.
 Doesn't mess with special buffers."
   (interactive)
+  (when (y-or-n-p "Are you sure you want to kill all buffers but the current one? ")
     (-each
         (->> (buffer-list)
              (-filter #'buffer-file-name)
              (--remove (eql (current-buffer) it)))
-   #'kill-buffer))
+      #'kill-buffer)))
 
 (defun prelude-create-scratch-buffer ()
   "Create a new scratch buffer."