[llvm] [llvm-objdump] Add the --visualize-jumps option (PR #74858)

[Fangrui Song via llvm-commits]

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@@ -291,6 +291,36 @@ OPTIONS
 
   Target triple to disassemble for, see ``--version`` for available targets.
 
+.. option:: --visualize-jumps=<modes>
+
+  Display a control-flow graph which shows the targets of branch instructions to the left of disasembly. ``modes`` is a comma-separated list of options, which configure the character set and used to print the graph.
+
+  If ``modes`` is omitted, the default is ``unicode,auto``
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MaskRay wrote:

Unlike `.td` help messages, the documentation descriptions should have a trailing period.

https://github.com/llvm/llvm-project/pull/74858