ghcup --version needs to end with a newline

Created by: brodybits

Describe the bug A clear and concise description of what the bug is, what you did, what happened and what you expected.

Here are the results of my attempt to do ghcup --version:

Brodys-MacBook-Air:~ brodybits$ ghcup --version
0.0.7Brodys-MacBook-Air:~ brodybits$ 

In case of installation/compilation failure, rerun with ghcup --verbose <your-command> and paste the whole log output.

To Reproduce Steps to reproduce the behavior:

1. Install ghcup according to https://github.com/haskell/ghcup#manual-install
2. Try ghcup --version from the command line

System information Paste the output of ghcup debug-info and provide additional OS information, if missing.

Brodys-MacBook-Air:~ brodybits$ ghcup debug-info
Script version: 0.0.7

Script variables:
  GHC install location:     /Users/brodybits/.ghcup/ghc
  Binary install location:  /Users/brodybits/.ghcup/bin
  Tarball cache location:   /Users/brodybits/.ghcup/cache
  Downloader:               curl --fail -O <url>
  Script update url:        https://raw.githubusercontent.com/haskell/ghcup/master//ghcup
  GHC download baseurl:     https://downloads.haskell.org/~ghc
  Meta download url         https://raw.githubusercontent.com/haskell/ghcup/master//.download-urls
  Meta download format      1
  Meta version url          https://raw.githubusercontent.com/haskell/ghcup/master//.available-versions
  Meta version format       1

Detected system information:
  Architecture:   x86_64
  Distribution:   Darwin
  Distro alias:   darwin
  Distro version: 18.5.0
Brodys-MacBook-Air:~ brodybits$