Use fmt.printf() to end with a newline

test/e2e/storage/utils/utils.go

@@ -494,7 +494,7 @@ func genBinDataFromSeed(len int, seed int64) []byte {
 
 	len, err := rand.Read(binData)
 	if err != nil {
-		fmt.Printf("Error: %v", err)
+		fmt.Printf("Error: %v\n", err)
 	}
 
 	return binData

test/e2e_node/environment/conformance.go

@@ -81,7 +81,7 @@ func check(options ...string) []error {
 		case "kernel":
 			errs = appendNotNil(errs, kernel())
 		default:
-			fmt.Printf("Unrecognized option %s", c)
+			fmt.Printf("Unrecognized option %s\n", c)
 			errs = append(errs, fmt.Errorf("Unrecognized option %s", c))
 		}
 	}