Changing the last suggestions from review.

fdbserver/MutationTracking.cpp

@@ -26,6 +26,7 @@
 #error "You cannot use mutation tracking in a clean/release build."
 #endif
 
+// Track up to 2 keys in simulation via enabling MUTATION_TRACKING_ENABLED and setting the keys here.
 StringRef debugKey = LiteralStringRef( "" );
 StringRef debugKey2 = LiteralStringRef( "\xff\xff\xff\xff" );
 

fdbserver/TLogServer.actor.cpp

@@ -1375,7 +1375,7 @@ void peekMessagesFromMemory( Reference<LogData> self, TLogPeekRequest const& req
 		}
 
 		// We need the 4 byte length prefix to be a TagsAndMessage format, but that prefix is added as part of StringRef serialization.
-	  int offset = messages.getLength();
+		int offset = messages.getLength();
 		messages << it->second.toStringRef();
 		void* data = messages.getData();
 		DEBUG_TAGS_AND_MESSAGE("TLogPeek", currentVersion, StringRef((uint8_t*)data+offset, messages.getLength()-offset))