Function split_body_needs_name_or_batch 

pub fn split_body_needs_name_or_batch() -> String

split-body: neither a name nor --batch was supplied.

Distinct from name_required_positional_or_flag because this verb has a second legitimate way to be complete — operating on every oversized memory — and a message naming only the name would read as though batch mode did not exist. GAP-SG-272 added the positional spelling, so the text names all three ways in rather than the one flag it used to hardcode in English only.