[Corrected] Layout/TrailingWhitespace: Trailing whitespace detected. #1510
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Original PR message from #1441
While reviewing the code to ensure an interoperability issue, I dove into the source. I found my answer (mail does the right thing, by not caring about TLS itself, but delegating this to configuration and OpenSSL) and I also found a lot of trailing whitespace.
Since I dislike that I let rubocop auto-correct that for me and commited the results.
I intentionally did not push a new dependency on you. That would be a hugely different PR and discussion.
This, however, should be easy to merge and help future PRs to stick to the CONTRIBUTING guidelines.