MFen:
1.11 -> 1.17 bibliography/chapter.sgml
1.6 -> 1.8 disks/chapter.sgml
1.10 -> 1.13 internals/chapter.sgml
1.9 -> 1.11 kernelopts/chapter.sgml
1.5 -> 1.8 x11/chapter.sgml
1.77 -> 1.79 book.sgml
1.45 -> 1.65 staff/chapter.sgml
1.13 -> 1.14 security/chapter.sgml
1.9 -> 1.11 quotas/chapter.sgml
1.12 -> 1.16 ppp-and-slip/chapter.sgml
1.12 -> 1.15 pgpkeys/chapter.sgml