merge revision(s) 45646: [Backport #9765]
* ext/stringio/stringio.c (strio_putc): fix for non-ascii encoding, like as IO#putc. [ruby-dev:48114] [Bug #9765]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@46197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 45646: [Backport #9765]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@46197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e