RestKit/RestKit — pull request #463 by rayfix (2011-12-09 09:59:00+00:00)
Title: Fix static analayzer warning for uninitialized variable

Sorry to be so noisy about this somewhat trivial issue. I am still getting used to how github works for collaboration. This patch is pretty much the same thing as pull-request/issue #449 except this time I put the change on a branch so I can work on some other things without polluting the change set. I also think I made the variable name a little better.

The issue is that if you run the analyzer you get an initialized variable warning. It is most likely a false positive (assuming the server conforms correctly to the OAuth2 spec) but I think it is better to get rid of the warning clutter.

```
RestKit/Code/Network/RKOAuthClient.m:119:30:{119:81-119:90}: warning: Argument in message expression is an uninitialized value
NSError *error = [NSError errorWithDomain:RKRestKitErrorDomain code:errorCode userInfo:userInfo];
^ ~~~~~~~~~
1 warning generated.
```

If this change turns out to be unacceptable, that is fine. I'm in it for the learning experience of it.