Seldaek/composer — comment on commit f0d86269930f11ce1552c51561d6afc7cf7e63f7
File: src/Composer/Installer/LibraryInstaller.php line 139
By Seldaek:

It is, but it's full of echo everywhere, we need to clean this up once,
but until then I don't want to forget reporting stuff to the user.