Except the linked list implementation was added to the project in 2013[1], and is presumably used elsewhere in the program. This only fixes a couple of bugs usi

Except the linked list implementation was added to the project in 2013[1], and is presumably used elsewhere in the program. This only fixes a couple of bugs using that same mechanism. https://github.com/rubygems/rubygems/blob/800f2e63bc6174b5b4dea5528110b09d89fe3dd1/lib/rubygems/util/list.rb https://github.com/rubygems/rubygems/blob/800f2e63bc6174b5b4...