utils: shut up a coverity warning (CID 155456)

5 jobs from coverity in 13 minutes and 28 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
canceled #72954
docker linux amd64
build:linux:amd64

passed #19916
docker linux amd64
build:linux:amd64

00:00:34

 
  Test
passed #19918
docker linux amd64
deckard:linux:amd64

00:00:29

canceled #19919
docker linux amd64 allowed to fail
respdiff:linux:amd64

00:13:28

passed #19917
docker linux amd64
test:linux:amd64

00:00:20