Fix getting ignored files in testing
Fix getting ignored files in testing

The *.rb glob works weird (it's empty when there are untracked rb files
in project's dir).

guilherme/byebug,os97673/byebug,os97673/byebug,yui-knk/byebug,deivid-rodriguez/byebug,ozydingo/byebug,miamiruby/byebug,webdev1001/byebug,icebreaker/byebug,yui-knk/byebug,guilherme/byebug,webdev1001/byebug,deivid-rodriguez/byebug,k0kubun/byebug,icebreaker/byebug,deivid-rodriguez/byebug,scalp42/byebug,scalp42/byebug,k0kubun/byebug,guilherme/byebug,saisai/byebug,k0kubun/byebug,saisai/byebug,yui-knk/byebug,miamiruby/byebug,ozydingo/byebug