I think this line could be removed, so that this:
2014-03-30 16:52:57 received block 000000000000000055fd58a596c921f789b3785c0e84242f87981f7762117f73 node=1 2014-03-30 16:52:59 UpdateTip: new best=000000000000000055fd58a596c921f789b3785c0e84242f87981f7762117f73 height=292899 log2_work=77.586222 tx=35771262 date=2014-03-28 11:46:26 progress=0.988418 2014-03-30 16:52:59 ProcessBlock: ACCEPTED 2014-03-30 16:53:02 received block 00000000000000001544a7fce213d98be118f550c792624758d2015165d003ab node=1 2014-03-30 16:53:04 UpdateTip: new best=00000000000000001544a7fce213d98be118f550c792624758d2015165d003ab height=292900 log2_work=77.586358 tx=35771641 date=2014-03-28 11:51:47 progress=0.988438 2014-03-30 16:53:04 ProcessBlock: ACCEPTED 2014-03-30 16:53:05 received block 0000000000000000475115027af8b17991c8c5ed424f08472c7518cbd524a9fa node=1 2014-03-30 16:53:06 UpdateTip: new best=0000000000000000475115027af8b17991c8c5ed424f08472c7518cbd524a9fa height=292901 log2_work=77.586495 tx=35771875 date=2014-03-28 11:56:48 progress=0.988456 2014-03-30 16:53:06 ProcessBlock: ACCEPTED 2014-03-30 16:53:09 received block 0000000000000000da52112a8558dc772049eee77a0a6f3fddfdebfda18ed36b node=1 2014-03-30 16:53:10 UpdateTip: new best=0000000000000000da52112a8558dc772049eee77a0a6f3fddfdebfda18ed36b height=292902 log2_work=77.586632 tx=35772180 date=2014-03-28 12:03:23 progress=0.988480 2014-03-30 16:53:10 ProcessBlock: ACCEPTED
becomes this:-
2014-03-30 16:52:57 received block 000000000000000055fd58a596c921f789b3785c0e84242f87981f7762117f73 node=1 2014-03-30 16:52:59 UpdateTip: new best=000000000000000055fd58a596c921f789b3785c0e84242f87981f7762117f73 height=292899 log2_work=77.586222 tx=35771262 date=2014-03-28 11:46:26 progress=0.988418 2014-03-30 16:53:02 received block 00000000000000001544a7fce213d98be118f550c792624758d2015165d003ab node=1 2014-03-30 16:53:04 UpdateTip: new best=00000000000000001544a7fce213d98be118f550c792624758d2015165d003ab height=292900 log2_work=77.586358 tx=35771641 date=2014-03-28 11:51:47 progress=0.988438 2014-03-30 16:53:05 received block 0000000000000000475115027af8b17991c8c5ed424f08472c7518cbd524a9fa node=1 2014-03-30 16:53:06 UpdateTip: new best=0000000000000000475115027af8b17991c8c5ed424f08472c7518cbd524a9fa height=292901 log2_work=77.586495 tx=35771875 date=2014-03-28 11:56:48 progress=0.988456 2014-03-30 16:53:09 received block 0000000000000000da52112a8558dc772049eee77a0a6f3fddfdebfda18ed36b node=1 2014-03-30 16:53:10 UpdateTip: new best=0000000000000000da52112a8558dc772049eee77a0a6f3fddfdebfda18ed36b height=292902 log2_work=77.586632 tx=35772180 date=2014-03-28 12:03:23 progress=0.988480
We know a ProcessBlock is accepted when we see a new Updated Tip or Orphan block added, and if it fails we see an error message, so the line is kinda redundant.