ZSH: auto set git user.email for work repos

WORK_REPO=corp
WORK_EMAIL=user@corp.com
function _git_work_email {
  if test -d .git; then
    if test "$(git remote -v | grep $WORK_REPO)"; then
      git config --local user.email $WORK_EMAIL
    fi
  fi
}
chpwd_functions=(${chpwd_functions[@]} "_git_work_email")