BUG/MINOR: Avoid formatting issue when a certificate has no CommonName #1064

Job	Run time
generate-models	1m 13s
generate-specification	43s
HAProxy check commit message	0s
lint-spec	0s
golangci-lint	0s
license-check	0s
go mod tidy	0s
Build	0s
Tests	-1s
e2e on HAProxy	0s
	1m 55s

Provide feedback