Unexpected EOF formatting

[adfoster-r7]

Hi there; Thanks for the gem!

With the following test_case.rb file:

let(:valid_data) do
  Base64.decode64 <<~EOF
    aGVsbG8gd29ybGQK
  EOF
end

And running the command:

bundle exec stree format --print-width=100 ./test_case.rb

The resulting code appears to be less intuitive to read:

let(:valid_data) { Base64.decode64 <<~EOF }
    aGVsbG8gd29ybGQK
  EOF

Expected result:

let(:valid_data) do
  Base64.decode64 <<~EOF
    aGVsbG8gd29ybGQK
  EOF
end

Versions:

$ ruby --version
ruby 3.4.1 (2024-12-25 revision 48d4efcb85) +PRISM [x86_64-darwin23]

$ bundle exec stree version                                
6.2.0

Apologies if I've reported this issue to the wrong repo or I've misunderstood the output; thanks!