merge revision(s) 50834: [Backport #11221]
* ext/zlib/zlib.c: Fix indentation for rdoc. [Bug #11221][ruby-core:69465]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@51178 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 50834: [Backport #11221]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@51178 b2dd03c8-39d4-4d8f-98ff-823fe69b080e