Fix test failure in DDBasicLoggingTests
Fix test failure in DDBasicLoggingTests

There was a comment, in line 55 indicating that the block would be called twice
for every log. Appearantly this isn't the case anymore.

Note: I do not fully understand what is going on there and why the behavior
seems to have changed.
I only observed the current behavior to be that the block is called exactly
once for every log.

@bpoplauschi please double check this commit

jum/CocoaLumberjack,Jawbone/CocoaLumberjack,DD-P/CocoaLumberjack,Jawbone/CocoaLumberjack,CocoaLumberjack/CocoaLumberjack,Nuglif/CocoaLumberjack,mqeizi/CocoaLumberjack,dmauro/CocoaLumberjack,mqeizi/CocoaLumberjack,SportsLock/CocoaLumberjack,CocoaLumberjack/CocoaLumberjack,mpapp/CocoaLumberjack,jum/CocoaLumberjack,sushichop/CocoaLumberjack,sushichop/CocoaLumberjack,Jawbone/CocoaLumberjack,dmauro/CocoaLumberjack,sinoru/CocoaLumberjack,mpapp/CocoaLumberjack,CocoaLumberjack/CocoaLumberjack,SportsLock/CocoaLumberjack,Nuglif/CocoaLumberjack,SportsLock/CocoaLumberjack,mpapp/CocoaLumberjack,CocoaLumberjack/CocoaLumberjack,sinoru/CocoaLumberjack,Jawbone/CocoaLumberjack,dmauro/CocoaLumberjack,Nuglif/CocoaLumberjack,Nuglif/CocoaLumberjack,Jawbone/CocoaLumberjack,sushichop/CocoaLumberjack,jum/CocoaLumberjack,Nuglif/CocoaLumberjack,sinoru/CocoaLumberjack,SportsLock/CocoaLumberjack,sinoru/CocoaLumberjack,sinoru/CocoaLumberjack,SportsLock/CocoaLumberjack,mqeizi/CocoaLumberjack,DD-P/CocoaLumberjack,sushichop/CocoaLumberjack,mqeizi/CocoaLumberjack,jum/CocoaLumberjack,DD-P/CocoaLumberjack,mqeizi/CocoaLumberjack