Add support for defining a {"packagist.org":false} repo in composer init, fixes #8210
Add support for defining a {"packagist.org":false} repo in composer init, fixes #8210

staabm/composer,andrerom/composer,stefangr/composer,localheinz/composer,alcohol/composer,naderman/composer,pierredup/composer,composer/composer,johnstevenson/composer,floverdevel/composer,milleruk/composer,fabpot/composer,stof/composer,nicolas-grekas/composer