Comment 4 for bug 1684039

Submitted upstream to Debian, maintainer promptly replied and plans to fix upstream also.

Christian suggested a slightly different patch not to rely on busybox for 'tr' and use a case statement instead (as it's a Recommends); He plans to push that update through to stretch (stable) also.

He said he plans to upload that fix rapidly so I'll wait for that so we can sync the same fix in.