Point the build blocks and troubleshooting pages at the Debian front-end,
fix the non-existent ./build-rust.sh references in the Spanish update
pages, and replace the stale Ubuntu-only package list in src/rust/README.md.
Record the review decisions for libzstd1, the unexpired-lease race, and
the unexercised postinst in the plan, and mark the review phase complete.
Herbert Wolverson
7c4e63e060
