merge revision(s) d118c84b0b9110462e479487ffaf175a75e5718e: [Backport #15199]
Fix IO#scanf on pipes on Windows IO.seek on a pipe on Windows raises Errno::EINVAL instead of Errno::ESPIPE. Fixes Ruby Bug #15199
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@67754 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) d118c84b0b9110462e479487ffaf175a75e5718e: [Backport #15199]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@67754 b2dd03c8-39d4-4d8f-98ff-823fe69b080e