[xslt] Potentially avoidable call of xsltParseStylesheetExcludePrefix()

[Kasimier Buchcik <K Buchcik 4commerce de>]

Hi,

In xslt.c, xsltPrecomputeStylesheet(), a call to
xsltParseStylesheetExcludePrefix() is performed for every
element-node of the stylesheet-doc. Since the attribute
"exclude-result-prefixes" is only allowed on xsl:stylesheet and
xsl:transform, I wonder if the call is necessary.

Regards,

Kasimier