Ha ha, "10 line error". [ Puts on Monty Python voice] "What I wouldn't give for a 10 line error..." Incautious use of the template mechanism - or just a minor

Ha ha, "10 line error". [ Puts on Monty Python voice] "What I wouldn't give for a 10 line error..." Incautious use of the template mechanism - or just a minor typo - has given me couple screenfuls in the past.