Fix typo

Change-Id: I7c5603468f5ee7f7e33940d7b3787318c307acfa
Reviewed-on: https://gerrit.libreoffice.org/62343
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

xmlscript/source/xmllib_imexp/xmllib_import.cxx

@@ -176,7 +176,7 @@ Reference< xml::input::XElement > LibrariesElement::startChildElement(
     }
     else
     {
-        throw xml::sax::SAXException( "expected styles ot bulletinboard element!", Reference< XInterface >(), Any() );
+        throw xml::sax::SAXException( "expected styles of bulletinboard element!", Reference< XInterface >(), Any() );
     }
 }