Better comment

johnmay · egonw · commit 827c92eb1024 · 2022-01-04T09:32:09.000+01:00
diff --git a/descriptor/fingerprint/src/main/java/org/openscience/cdk/fingerprint/ShortestPathFingerprinter.java b/descriptor/fingerprint/src/main/java/org/openscience/cdk/fingerprint/ShortestPathFingerprinter.java
@@ -273,7 +273,7 @@ public ICountFingerprint getCountFingerprint(IAtomContainer iac) throws CDKExcep
      *      random number generators</a>
      */
     private int getRandomNumber(long seed) {
-        // XORSHIFT PRNG
+        // these shifts generate a large period (how often we see a repeat)
         seed = seed ^ seed << 21;
         seed = seed ^ seed >>> 35;
         seed = seed ^ seed << 4;
