message: Tell Linguist (and GitHub) that shrinkwrap.json is generated
  This should let GitHub hide diffs in it by default
  Also my teleprinter is broken: get rid of CRs.
diff: @@ -5,6 +5,10 @@ shrinkwrap.yaml merge=binary
  npm-shrinkwrap.json merge=binary
  yarn.lock merge=binary
  +# This is a generated file. Tell Linguist at GitHub to prefer *not*
  +# to show changes to it in PRs.
  +common/config/rush/shrinkwrap.yaml linguist-generated=true
  +
  # Rush's JSON config files use JavaScript-style code comments. The rule below prevents pedantic
  # syntax highlighters such as GitHub's from highlighting these comments as errors. Your text editor
  # may also require a special configuration to allow comments in JSON.
  