Output line to debug.log when IsInitialBlockDownload latches to false

src/validation.cpp

@@ -1141,6 +1141,7 @@ bool IsInitialBlockDownload()
         return true;
     if (chainActive.Tip()->GetBlockTime() < (GetTime() - nMaxTipAge))
         return true;
+    LogPrintf("Leaving InitialBlockDownload (latching to false)\n");
     latchToFalse.store(true, std::memory_order_relaxed);
     return false;
 }