http://www.kernel.org/pub/software/scm/git/docs/
+ There are also "make quick-install-doc" and "make quick-install-html"
+ which install preformatted man pages and html documentation.
+ This does not require asciidoc/xmlto, but it only works from within
+ a cloned checkout of git.git with these two extra branches, and will
+ not work for the maintainer for obvious chicken-and-egg reasons.
+
It has been reported that docbook-xsl version 1.72 and 1.73 are
buggy; 1.72 misformats manual pages for callouts, and 1.73 needs
the patch in contrib/patches/docbook-xsl-manpages-charmap.patch