Why move this? It was more efficient before this changed. Anyone curious about the self-explanatory program_name can just grep for it in the file.
The previous version of this wasn't pretty, but adopting an if (argc > 0) { program_name = argv[0]; ... like dj(1) used to have would be consistent (these are both utilities that can run without arguments, but which take options) and efficient.
This should be program_name or, ideally, merged back into the if (argc < 3) check from whence it came.
I regard the harakit as art as well as code. Each utility should be simple, but also the best at what it does ("do one thing well"). Lost cycles add up. I don't care how small the issue is, I…
I can't add a second comment on the same line but program_name should be set here to argv[0], which would be consistent with my suggested change to mm(1) and how dj(1) was before this patchset.
I didn't see it but this case is already covered on L189; if argc > 0 { program_name = argv[0]; ...