Rewrap lines and merge the following from the English version:
1.110 -> 1.114 handbook/introduction/chapter.sgml
Submitted by: Hiroo Ono <hiroo _at_ jp dot FreeBSD dot org>
Reviewed by: Ryusuke Suzuki <ryusuke _at_ jp dot FreeBSD dot org>
References: [doc-jp-work 1797, 1818, 1968]