close opened files explicitly to fix a test failure like http://ci.rvm.jp/results/trunk-theap-asserts@silicon-docker/1804207
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67159 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by ko1 (Koichi Sasada) over 6 years ago
close opened files explicitly
to fix a test failure like
http://ci.rvm.jp/results/trunk-theap-asserts@silicon-docker/1804207
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67159 b2dd03c8-39d4-4d8f-98ff-823fe69b080e