The five European packs have byte-for-byte identical MSG key sets: 18813 keys,
4091 ids, zero differences in any direction. Japanese has 14295 keys, which
looks like 4521 missing captions and is not: its id set matches to within 5, its
page count is the same (4765 vs 4758), and its mean lines per page is 1.52
against English's 1.85 with no 4-line pages at all. It carries the same dialogue
and wraps into fewer lines, which is what a language without inter-word spaces
does in a fixed-width box.
Also corrects my own wording in cutscene-message-table.md, which said a page
'holds 3 or 4 wrapped lines'. That counted key SLOTS, which MSG_DEMO records
allocate four at a time. Counting lines with text, an English page holds 1 to 4
(1574/2439/632/113). And it reconciles the 8800 figure used throughout: that is
distinct English keys with non-empty text, out of 18813 keys total.
0be28c5fe2