[llvm] [llvm-lit][test] Precommit tests for lit's built-in cat command (PR #101530)

[James Henderson via llvm-commits]

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@@ -0,0 +1,10 @@
+first
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+last
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jh7370 wrote:

Is the missing line ending at EOF deliberate?

https://github.com/llvm/llvm-project/pull/101530