fix off-by-one mistake with integer arithmetic so RecordingInputStreamTest.testReadFullyOrUntil() test passes (how did this ever pass?)

Author: nlevitt

src/main/java/org/archive/io/RecordingOutputStream.java

@@ -296,7 +296,7 @@ protected void checkLimits() throws RecorderIOException {
             throw new RecorderTimeoutException(); 
         }
         // need to throttle reading to hit max configured rate? 
-        if(position/duration > maxRateBytesPerMs) {
+        if(position/duration >= maxRateBytesPerMs) {
             long desiredDuration = position / maxRateBytesPerMs;
             try {
                 Thread.sleep(desiredDuration-duration);