Upstream support for Ruby 1.9 ended, therefore we'd like to remove ruby1.9 soon. Your package depends on ruby:1.9, please use a recent ruby implementation and get this version stable, if the ruby:1.9 version had stable keywords. Further reading: https://wiki.gentoo.org/wiki/Project:Ruby/Ruby_1.9_deprecation
Please provide a version that is working with a later ruby, otherwise it will be masked for removal with ruby19 in two weeks.
I've added termtter 2.2.3 with support for ruby20 and ruby21, and removed the broken ruby19 version.