Delete empty lines silently, closes #27

plugin/tagbar.vim

@@ -2087,7 +2087,7 @@ function! s:RenderContent(...)
     " Delete empty lines at the end of the buffer
     for linenr in range(line('$'), 1, -1)
         if getline(linenr) =~ '^$'
-            execute linenr . 'delete _'
+            execute 'silent ' . linenr . 'delete _'
         else
             break
         endif