[lld] r272305 - Use errorDynRel like every other target.

[Rafael Espíndola via llvm-commits]

> So can we just change the text "relocation XXX cannot be used when making a
> shared object; recompile with -fPIC."
>
> to "cannot be used against shared object; recompile with -fPIC." in
> errorDynRel() ?
>
>
> For x64 that should work I think. Not sure if there another reasons to error
> out particular relocation except

I think that wording is an improvement. LGTM.

Thanks,
Rafael