Refresh with latest Simplified Chinese translation:
desktop/chapter.sgml: 1.67 -> 1.69 disks/chapter.sgml: 1.267 -> 1.269 install/chapter.sgml: 1.338 -> 1.343 mail/chapter.sgml: 1.134 -> 1.135 mirrors/chapter.sgml: 1.421 -> 1.422 multimedia/chapter.sgml: 1.118 -> 1.119 ppp-and-slip/chapter.sgml: 1.173 -> 1.175 security/chapter.sgml: 1.307 -> 1.309
Obtained from: The FreeBSD Simplified Chinese Project