[handly-dev] bad comment for ISnapshot.isEqualTo

[Vlad Dumitrescu <vladdu55@xxxxxxxxx>]

The comment in ISnapshot says 

     * Returns whether the two snapshots are equal. If the snapshots are equal 

     * they have equal contents (or had had equal contents before one or both 

     * of them have expired). However, the converse is not necessarily true.

Which is wrong according to the implementation (and its comment): snapshots can be equal only if none of them is expired.

regards,

Vlad