minor clarification to javadocs for equals()

Author: dconeybe

firebase-firestore/src/main/java/com/google/firebase/firestore/AggregateQuery.java

@@ -78,7 +78,7 @@ public Task<AggregateQuerySnapshot> get(@NonNull AggregateSource source) {
    * <ol>
    *   <li>{@code object} is a non-null instance of {@link AggregateQuery}.
    *   <li>{@code object} performs the same aggregations as this {@link AggregateQuery}.
-   *   <li>{@code object} has the same underlying {@link Query} as this {@link AggregateQuery}.
+   *   <li>The underlying {@link Query} of {@code object} compares equal to that of this object.
    * </ol>
    *
    * @param object The object to compare to this object for equality.

firebase-firestore/src/main/java/com/google/firebase/firestore/AggregateQuerySnapshot.java

@@ -56,7 +56,7 @@ public long getCount() {
    *
    * <ol>
    *   <li>{@code object} is a non-null instance of {@link AggregateQuerySnapshot}.
-   *   <li>{@code object} has the same {@link AggregateQuery} as this object.
+   *   <li>The {@link AggregateQuery} of {@code object} compares equal to that of this object.
    *   <li>{@code object} has the same results as this object.
    * </ol>
    *