Fix "bug" link that was actually a CL.

RELNOTES=n/a

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=265457436

guava/src/com/google/common/collect/Streams.java

@@ -139,7 +139,7 @@ public static DoubleStream stream(OptionalDouble optional) {
 
   private static void closeAll(BaseStream<?, ?>[] toClose) {
     for (BaseStream<?, ?> stream : toClose) {
-      // TODO(b/198102330): Catch exceptions, rethrowing later with extras as suppressed exceptions.
+      // TODO(b/80534298): Catch exceptions, rethrowing later with extras as suppressed exceptions.
       stream.close();
     }
   }