fix typo

Co-authored-by: Richard Wall <wallrj@users.noreply.github.com>
Signed-off-by: Tim Ramlot <42113979+inteon@users.noreply.github.com>

cmd/controller/app/start.go

@@ -142,7 +142,7 @@ to renew certificates at an appropriate time before expiry.`,
 				}
 
 				if err := logf.ValidateAndApply(&controllerConfig.Logging); err != nil {
-					log.Error(err, "Failed to validate webhook flags")
+					log.Error(err, "Failed to validate controller flags")
 					os.Exit(1)
 				}
 			}