The blocks that are not programs were the ones that had drifted: the usage text had lost its indentation and the refusal table had trimmed "(see plan.org)" off every message, so the page was showing wording the compiler does not print.
Description
Languages
OCaml
67.2%
Emacs Lisp
15.2%
C
10.4%
HTML
2.9%
Standard ML
2.8%
Other
1.5%