merge revision(s) r48878: [Backport #9591]
io-console.gemspec: bump up * ext/io/console/io-console.gemspec: bump up to 0.4.3.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@50127 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) r48878: [Backport #9591]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@50127 b2dd03c8-39d4-4d8f-98ff-823fe69b080e