mutt: Add error message string for imap_mailbox_rename() on root...

[Brendan Cully]

changeset: 6612:685b9dfba297
user:      Kevin McCarthy <ke...@8t8.us>
date:      Sun Apr 10 14:14:10 2016 -0700
link:      http://dev.mutt.org/hg/mutt/rev/685b9dfba297

Add error message string for imap_mailbox_rename() on root folder.

This was fixed just before 1.6.0, but due to the string freeze, could
not add an error message.

diffs (16 lines):

diff -r b8240918eded -r 685b9dfba297 imap/browse.c
--- a/imap/browse.c     Fri Apr 08 18:38:27 2016 -0700
+++ b/imap/browse.c     Sun Apr 10 14:14:10 2016 -0700
@@ -319,11 +319,9 @@
     goto fail;
   }
 
-  /* TODO: add mutt_error call, such as
-   * "Cannot rename root folder"
-   */
   if (!mx.mbox)
   {
+    mutt_error _("Cannot rename root folder");
     goto fail;
   }