fetch-configlet: print success message

[ee7]

Before this commit, fetch-configlet produced no output on success:

$ scripts/fetch-configlet
$ echo $?
0

With this commit, it prints a message while downloading, and then prints the downloaded configlet version and its location:

$ scripts/fetch-configlet
Fetching configlet...
Downloaded configlet 4.0.0-beta.7 to ./bin/configlet

Closes: #459

[verdammelt]

My reading of the change makes it look like these messages are going to stderr? Why stderr rather than stdout?

[ee7]

My reading of the change makes it look like these messages are going to stderr? Why stderr rather than stdout?

Only the "downloading..." message is going to stderr.

I believe it's common for that kind of message to go to stderr. See:

$ cd /tmp
$ git clone --depth 1 https://github.com/exercism/common-lisp > /dev/null
Cloning into 'common-lisp'...
remote: Enumerating objects: 1059, done.
remote: Counting objects: 100% (1059/1059), done.
remote: Compressing objects: 100% (899/899), done.
remote: Total 1059 (delta 71), reused 700 (delta 46), pack-reused 0
Receiving objects: 100% (1059/1059), 355.08 KiB | 3.37 MiB/s, done.
Resolving deltas: 100% (71/71), done.
$ git clone --depth 1 https://github.com/exercism/ruby 2>/dev/null
$ echo $?
0