Format.jl isn’t totally compatible with Formatting.jl, the biggest difference is that I incorporated the PR that Tom Breloff (great guy that he is, of Plots.jl fame) had done, and renamed some of the functions as I saw fit (i.e. fmt → pyfmt), to make it clearer the differences between the Python style formatting code (pyfmt), the C style formatting code (cfmt), and the type driven formatting that Tom’s PR added (fmt).
If those changes were considered acceptable to the rest of the people using Formatting, they could be combined.
I would love to join JuliaIO though, I use many of it’s repos, and have at least a little 
experience in that area.