[llvm] [llvm-readobj] Fixes malformed json on JSON printed corefiles (PR #92835)

[Fred Grim via llvm-commits]

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@@ -238,6 +238,10 @@ Changes to the LLVM tools
   documented in `--help` output and the command guide. (`#90474
   <https://github.com/llvm/llvm-project/pull/90474>`)
 
+* llvm-readobj's LLVM output has changed format for ELF core files. The
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feg208 wrote:

done

https://github.com/llvm/llvm-project/pull/92835