tiltfile local output missing newline

[nicks]

Currently getting this output from my tiltfile:

Loading Tiltfile at: /home/nick/src/gondolier/Tiltfile
local: ctlptl get registry my-registry -o template --template '{{.status.listenAddress}}:{{.port}}'
 → 127.0.0.1:5010Successfully loaded Tiltfile (1.614615587s)

I think we need to make sure all local output ends in a newline...