merge revision(s) 2ecfb88e: [Backport #16918]

	Correctly remove temporary directory if path yielded is mutated
	
	Another approach would be to freeze the string, but that could
	cause backwards compatibility issues.
	
	Fixes [Bug #16918]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67910 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/tmpdir.rb b/lib/tmpdir.rb
index 87e53a83be..9d61595ec2 100644
--- a/lib/tmpdir.rb
+++ b/lib/tmpdir.rb
@@ -90,7 +90,7 @@ class Dir
     }
     if block_given?
       begin
-        yield path
+        yield path.dup
       ensure
         unless base
           stat = File.stat(File.dirname(path))