Rubocop autocorrect for FrozenStringLiteralComment not working
This is a breaking change introduced in the version 0.87 (see the issue).
Quoting from there:
rubocop -a does all autocorrections, including unsafe ones. One has to add --safe-auto-correct to exclude unsafe ones.
You should use the -A flag now to safe and/or unsafe autocorrect your files:
rubocop -a / --autocorrect no longer run unsafe corrections; rubocop -A / --autocorrect-all run both safe and unsafe corrections. Options --safe-autocorrect is deprecated
It should work for you as:
bundle exec rubocop -A --only Style/FrozenStringLiteralComment