Fix URL of checksum
Fix URL of checksum

briankilgore/heroku-buildpack-php-prod,penciu/apache,AlphaStaxLLC/heroku-buildpack-php-custom,Scalingo/php-buildpack,penciu/apache,OKAMca/heroku-buildpack-php,CHH/heroku-buildpack-php,cachethq/cachet-buildpack,stof/heroku-buildpack-php,nsg/dokku-buildpack-picocms,bobmaerten/dokku-buildpack-php,jstacoder/heroku-buildpack-php-1,Jonatasmz/php-buildpack,penciu/apache,AlphaStaxLLC/heroku-buildpack-php-custom,AlphaStaxLLC/heroku-buildpack-php-custom,CHH/heroku-buildpack-php,Scalingo/php-buildpack,OKAMca/heroku-buildpack-php,Scalingo/php-buildpack,nsg/dokku-buildpack-picocms,pierredup/packager-buildpack-php,jstacoder/heroku-buildpack-php-1,OKAMca/heroku-buildpack-php,bobmaerten/dokku-buildpack-php,ryosuzuki/php-buildpack,stof/heroku-buildpack-php,pierredup/packager-buildpack-php,CHH/heroku-buildpack-php,Jonatasmz/php-buildpack,mraymond/heroku-buildpack-php,ryosuzuki/php-buildpack,mraymond/heroku-buildpack-php,stof/heroku-buildpack-php