[clang-tools-extra] [clang-tidy] Don't insert blank line in IncludeInserter (PR #221428)

[Baranov Victor via cfe-commits]

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@@ -261,6 +261,10 @@ infrastructure are described first, followed by tool-specific sections.
 
 #### Miscellaneous
 
+- Fixed clang-tidy adding an unwanted blank line when automatically inserting
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vbvictor wrote:

Thanks! Fixed now.

https://github.com/llvm/llvm-project/pull/221428