[DRE-maint] ruby-cheffish is marked for autoremoval from testing

[Debian testing autoremoval watch]

ruby-cheffish 4.0.0-1 is marked for autoremoval from testing on 2016-10-24

It is affected by these RC bugs:
837229: ruby-cheffish: FTBFS: ERROR: Test "ruby2.3" failed.

It (build-)depends on packages with these RC bugs:
837228: chef: FTBFS: ERROR: Test "ruby2.3" failed.
838216: chef: Could not find 'chef-zero' (~> 4.5) - did find: [chef-zero-5.0.0] (Gem::LoadError)