git subrepo pull --branch=mpl390 --remote=https://github.com/mrclary/…

…spyder-kernels.git --update external-deps/spyder-kernels

subrepo:
  subdir:   "external-deps/spyder-kernels"
  merged:   "335583b37"
upstream:
  origin:   "https://github.com/mrclary/spyder-kernels.git"
  branch:   "mpl390"
  commit:   "335583b37"
git-subrepo:
  version:  "0.4.6"
  origin:   "???"
  commit:   "???"