Collate the sidebar mailboxes for a more natural sort order.
A sorted sidebar will now match a sorted browser.
e.g.
Old Sort New Sort
-------- --------
_apple Apple
_Banana _apple
_Cherry banana
_damson _Banana
Apple Cherry
banana _Cherry
Cherry damson
damson _damson
result = (b2->msg_flagged - b1->msg_flagged);
break;
case SORT_PATH:
- result = mutt_strcasecmp (b1->path, b2->path);
+ result = mutt_strcoll (b1->path, b2->path);
break;
}