Incorrect error message when invalid DataDirectory is specified in FreeBSD
When torrc DataDirectory is invalid, messages output to stderr incorrectly state that Log is invalid.
To reproduce:
1. Torrc has __invalid__ DataDirectory specification like `DataDirectory /foo/does-not-exist` or similar
1. Torrc has __valid__ Log specification of any kind; e.g. `Log notice syslog` or `Log notice file /var/log/tor/notices.log`
1. Start tor as a service, i.e. `# Service tor start`
1. Messages written to stderr are as follows:
```
Jan 04 17:43:01.000 [warn] Couldn't open file for 'Log notice file /var/log/tor': Is a directory
<snip>
Jan 04 17:43:01.000 [warn] Failed to parse/validate config: Failed to init Log options. See logs for details.
```
To remedy, specify a valid DataDirectory or comment out the line. Tor runs without issue, revealing that the Log specification was not the issue.
```
# uname -a
FreeBSD 9.2-RELEASE FreeBSD 9.2-RELEASE #0 r255898: Thu Sep 26 22:50:31 UTC 2013 root@bake.isc.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64
# tor --version
Jan 04 18:01:55.249 [notice] Tor v0.2.3.25 (git-17c24b3118224d65) running on FreeBSD.
```
**Trac**:
**Username**: modalexii
issue