nobu 570642bf15 envutil.rb: define flush method
* test/lib/envutil.rb (verbose_warning): flush is called on STDOUT
  and STDERR sometimes.

From: Nobuyoshi Nakada <nobu@ruby-lang.org>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61316 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-12-18 04:23:16 +00:00
..
2017-12-18 04:23:16 +00:00