[llvm] [llvm-objdump] Add --substitute-path and --source-dir for --source (PR #201096)

[James Henderson via llvm-commits]

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@@ -238,6 +238,29 @@ OPTIONS
   initial directories from absolute paths. This option has no effect without
   :option:`--prefix`.
 
+.. option:: --substitute-path <from> <to>
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jh7370 wrote:

Options should be documented in alphabetical order.

https://github.com/llvm/llvm-project/pull/201096