serverspec/serverspec — pull request #272 by tmtk75 (2013-10-12 00:59:50+00:00)
Title: To be optional for \r (CR) because it may not be contained for the output of `ip route` on CentOS6.4 at least

The reason why I fixed is that I saw \r (CR) wasn't contained in the output of `ip route`.
```
[vagrant@dev test]$ cat /etc/redhat-release
CentOS release 6.4 (Final)
[vagrant@dev test]$ ip route | grep -E '^default |^default ' | hexdump -C
00000000 64 65 66 61 75 6c 74 20 76 69 61 20 31 30 2e 30 |default via 10.0|
00000010 2e 32 2e 32 20 64 65 76 20 65 74 68 30 20 0a |.2.2 dev eth0 .|
0000001f
```