Log Message:
update to libxslt-1.1.12

1.1.12: Oct 29 2004:
   - build fixes: warnings removal (William).
   - bug fixes: attribute document pointer fix (Mark Vakoc), exslt date
    negative periods (William Brack), generated tree structure fixes,
    namespace lookup fix, use reentrant gmtime_r (William Brack),
    exslt:funtion namespace fix (William), potential NULL pointer reference
    (Dennis Dams, William), force string interning on generated
  documents.
   - documentation: update of the second tutorial (Panagiotis Louridas), add
    exslt doc in rpm packages, fix the xsltproc man page.