Merge pull request #788 from toupeira/patch-1

Remove trailing slashes in unique_tail formatter

autoload/airline/extensions/tabline/formatters/unique_tail.vim

@@ -10,7 +10,7 @@ function! airline#extensions#tabline#formatters#unique_tail#format(bufnr, buffer
     if empty(name)
       let map[nr] = '[No Name]'
     else
-      let tail = fnamemodify(name, ':t')
+      let tail = fnamemodify(name, ':s?/\+$??:t')
       if has_key(tails, tail)
         let duplicates[nr] = nr
       endif