[llvm] [llvm-otool] Add -a option to print archive headers (PR #189411)

[James Henderson via llvm-commits]

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@@ -4,6 +4,7 @@ def help : Flag<["--"], "help">, HelpText<"print help">;
 def help_hidden : Flag<["--"], "help-hidden">,
   HelpText<"print help for hidden flags">;
 
+def a : Flag<["-"], "a">, HelpText<"print archive header">;
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jh7370 wrote:

Also need to update the .rst CommandGuide document.

https://github.com/llvm/llvm-project/pull/189411