The Rebuilding World section contains this peculiarly vintage set of changed files in an example: src/games/cribbage/instr.c src/games/sail/pl_main.c src/release/sysinstall/config.c src/release/sysinstall/media.c src/share/mk/bsd.port.mk One the last one exists and it's almost never changed. A less obsolete set of files might be more informative. On a related note, the suggestion that rebuilding world might be a good idea if something changed in lib/libc should probably be stronger.
A commit references this bug: Author: sevan Date: Sun Apr 23 13:16:48 UTC 2017 New revision: 50201 URL: https://svnweb.freebsd.org/changeset/doc/50201 Log: Replace obsolete files in example output with files currently found in src. Make a stronger recommendation about rebuilding world if a key component in src has been modified. PR: 218566 Submitted by: Brooks Davis <Brooks AT FreeBSD DOT org> Approved by: bcr (mentor) Differential Revision: https://reviews.freebsd.org/D10452 Changes: head/en_US.ISO8859-1/books/handbook/cutting-edge/chapter.xml
Committed, thanks for raising the issue.