It does more then substitution

  $ git pull
  There is no tracking information for the current branch.
  Please specify which branch you want to rebase against.
  See git-pull(1) for details.

    git pull <remote> <branch>

  If you wish to set tracking information for this branch you can do so with:

    git branch --set-upstream-to=origin/<branch> test

  $ fuck
  git branch --set-upstream-to=origin/test test && git pull [enter/↑/↓/ctrl+c]