merge revision(s) 34116:
* ext/readline/readline.c (readline_readline): check if outstream is closed to get rid of a bug of readline 6. [ruby-dev:45043] [Bug #5803]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@34478 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 34116:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@34478 b2dd03c8-39d4-4d8f-98ff-823fe69b080e