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Issue Description:

When adding doc comments to a method via the Xcode shortcut, the template added is:

/// Description
/// - Parameters:
///   - param: param description

However, when entering the description and parameter description keeping the newlines as the template provides, swift format will complain about punctuation at the end of the entire doc comments, and not just the description, even if the description has punctuation.

Parameters descriptions otherwise do not seem to require punctuation.

Adding a new line between Description & - Parameters (and sometimes adding two and the deleting one is required) the swift-format punctuation concerns are alleviated.