use case: replace two element values in xml holding record, keeping all the rest

[briesenberg07]

This is harder than I thought it would be! I attempted to pattern a stylesheet after 002_localid_implementation_set.xsl, but I need to replace two elements, not just one.

I was also getting the child text that had been in the element I replaced in the output, following the new element with the new child text:

<root>
   <i_replaced>this value</i_replaced>so why am I seeing the old value here!?
</root>

Previous efforts started with iterating through files and invoking a Saxon transformation for each (see cell 9, # process XML [...]), and ended with an idea to use two subsequent transformation scenarios with two stylesheets (see 002_modify_852h.xsl and 002_modify_852i.xsl).