[PATCH] Fix manpage building with docbook-xsl

Hi all,

Attached patch is from Fedora against docbook-xsl 1.73 which fixes building 
manpages with docbook-xsl. This effects GIT at least [0] .

[0] 
http://lists-archives.org/git/625107-having-problems-with-building-the-manpages.html

Regards,
ismail

-- 
Perfect is the enemy of good