Normalize protocol case
Normalize protocol case

localheinz/packagist,composer/packagist,composer/packagist,roundcube/plugins.roundcube.net,localheinz/packagist,gencer/packagist,localheinz/packagist,composer/packagist,gencer/packagist,composer/packagist,roundcube/plugins.roundcube.net,gencer/packagist,roundcube/plugins.roundcube.net