From 58b9b3ec81f4dd8281cb3f78d3905181616ae7d1 Mon Sep 17 00:00:00 2001
From: Christian Brabandt <cb@256bit.org>
Date: Wed, 11 Dec 2019 23:35:41 +0100
Subject: [PATCH] netrw: do not error out when g:netrw_sort_by is not defined

---
 autoload/airline/extensions/netrw.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/autoload/airline/extensions/netrw.vim b/autoload/airline/extensions/netrw.vim
index 1c52b447..c6776f42 100644
--- a/autoload/airline/extensions/netrw.vim
+++ b/autoload/airline/extensions/netrw.vim
@@ -31,5 +31,5 @@ endfunction
 
 function! airline#extensions#netrw#sortstring()
   let order = (get(g:, 'netrw_sort_direction', 'n') =~ 'n') ? '+' : '-'
-  return g:netrw_sort_by . (g:airline_symbols.space) . '[' . order . ']'
+  return get(g:, 'netrw_sort_by', '') . (g:airline_symbols.space) . '[' . order . ']'
 endfunction