Wrong attribute name for language support in XSL-FO

[frank-steimke]

There are two similar named emplates in xsl/common/i10n.xsl for language support, called language.attribute and xml.language.attribute.
Both try to find the correct language value for a given node by inspecting the ancester axis. Then an attribute called "lang" is emited.
But that attribute name is wrong, the name must be "language". See section 7.10.2 in the XSL-FO Specification.

The second issue is that none of these stylesheets seem to be called anywhere in the stylesheets. Otherwise the bug had been detected immediately, since an attribute called lang is invalid in XSL-FO.

Regards, Frank Steimke