Partly reverted r59642. Because IO#close is idempotent since Ruby 2.3.
Reported by Eric Wong. Thank you.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59683 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by hsbt (Hiroshi SHIBATA) about 8 years ago
Partly reverted r59642. Because IO#close is idempotent since Ruby 2.3.
Reported by Eric Wong. Thank you.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59683 b2dd03c8-39d4-4d8f-98ff-823fe69b080e