From b2e2bbd0420133601c2f975109f90123b4e23d7e Mon Sep 17 00:00:00 2001
From: w0rp <devw0rp@gmail.com>
Date: Sun, 15 Jul 2018 23:04:50 +0100
Subject: [PATCH] unlet $TMPDIR too, where we can

---
 autoload/ale/util.vim | 1 +
 1 file changed, 1 insertion(+)

diff --git a/autoload/ale/util.vim b/autoload/ale/util.vim
index 93b997ea..eb2877b2 100644
--- a/autoload/ale/util.vim
+++ b/autoload/ale/util.vim
@@ -290,6 +290,7 @@ function! ale#util#Tempname() abort
     finally
         if l:clear_tempdir
             let $TMPDIR = ''
+            silent! unlet! $TMPDIR
         endif
     endtry