Error message translation, with variable reason text

I have an ereport() in the HS patch that looks like this                        ereport(trace_recovery(DEBUG1),
(errmsg("recoverycancels virtual transaction %u/%u pid %d because of          conflict with %s",  waitlist->backendId,
   waitlist->localTransactionId,  pid,  reason)));
 

The purpose of this is to give an LOG message with a variable reason
code. Should I worry about the translatability of something that exists
for DEBUG, and if so, what is the best/approved/recommended way of
making a message both translatable and variable?

Thanks,

-- Simon Riggs           www.2ndQuadrant.com