Set whitespace-line-column to 100 in .dir-locals.el
Set whitespace-line-column to 100 in .dir-locals.el

This matches the allowed line length for RuboCop's codebase.

tejasbubane/rubocop,rrosenblum/rubocop,tejasbubane/rubocop,rrosenblum/rubocop,tejasbubane/rubocop,rrosenblum/rubocop