[llvm] [llvm-readelf] Add --extra-sym-info (PR #65580)

[James Henderson via llvm-commits]

https://github.com/jh7370 commented:

No major comments, all looks generally reasonable to me.

I noticed this option extends the column headers, but we're already printing the extra information without the option. Is that the same as GNU, or are we currently printing more than them?

https://github.com/llvm/llvm-project/pull/65580