unknown output for 'Basic time limiting' example

I input:
```
$ /usr/local/bin/timeout -t 2 perl -e 'while ($i<100000000) {$i++;}'
```
Got:
```
$ TIMEOUT CPU 2.14 MEM 20608 MAXMEM 20608 STALE 0 MAXMEM_RSS 3540
$ <time name="ALL">2180</time>
```

My system:
ubuntu 16.04