[llvm] [llvm-objdump] Add possibility to verify .note section format (PR #90458)

[James Henderson via llvm-commits]

================
@@ -1,34 +1,46 @@
 ## Verify that --add-section warns on invalid note sections.
 
 # Add [namesz, descsz, type, name, desc] for a build id.
-#
+
+## Notes should be padded on 8 bits
----------------
jh7370 wrote:

```suggestion
## Notes should be padded to 8 bits.
```
Do you mean bytes?

https://github.com/llvm/llvm-project/pull/90458