An SKK dictionary's ";;" header carries its license notice, which
LICENSES/README.md relies on for kanji.dict, and skk2ktrans dropped
every ";;" line: a re-import as map/README describes lost the grant.
The leading comment block is kept now. README's regenerate-and-verify
recipe omitted mktelex.py although verify-map checks its output; and
the Dockerfile set a shell variable named egrep in plan9's config that
9c never reads, calling egrep by name.
