Merge the following from the English version:

1.159 -> 1.163 authors.ent
1.417 -> 1.425 contrib/chapter.sgml
1.41 -> 1.42 kernelconfig/chapter.sgml
1.121 -> 1.124 mirrors/chapter.sgml
1.69 -> 1.70 pgpkeys/chapter.sgml
1.33 -> 1.34 printing/chapter.sgml
1.212 -> 1.216 staff/chapter.sgml