[llvm-branch-commits] [llvm-size] Early return with error on invalid args (PR #128447)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/128447

This is very uncommon to recover from such errors.
It's especially bad or Radix, which affect format
specifiers.