From e88bb6a2f7b63a674cd1f6c0ad497751367c210f Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sat, 9 May 2020 01:43:53 +0900
Subject: rbuninstall.rb: get rid of errors when prefix ends with "/."

---
 tool/rbuninstall.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tool/rbuninstall.rb b/tool/rbuninstall.rb
index 736213f4fb..2a16b8fe43 100755
--- a/tool/rbuninstall.rb
+++ b/tool/rbuninstall.rb
@@ -46,6 +46,7 @@ END {
     unlink[dir] = true
   end
   while dir = $dirs.pop
+    dir = File.dirname(dir) while File.basename(dir) == '.'
     print "rmdir #{dir}#{ors}"
     unless $dryrun
       begin
-- 
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