This code:
if (fHavePruned && gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) {
LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks",
MIN_BLOCKS_TO_KEEP);
}
results in two log messages appearing on the same line:
2018-02-16 21:45:24 Prune: pruned datadir may not have more than 288 blocks; only checking available blocksVerifying last 1000 blocks at level 3