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Occurrences of "query module" were eliminated (see J.2.2 point 5), but another has crept in: In 3.15 "Try/Catch Expressions", the table row for err:module says: "The URI (or system ID) of the query module containing the instruction where the error occurred ..." Here, change "query module" to just "module".
"instruction" seems odd here as well. XSLT has instructions, but XPath and XQuery only have expressions. Perhaps some XSLT text got copied/pasted here?
Nice catch. Fix will appear in the next build.