- call after use, including all the strings referenced. If
- the string array parameter is passed as NULL the array
- will not be filled in, but the return code still
- indicates the number of current sessions.</para>
+ call after use, including all the strings
+ referenced. If the string array parameter is passed as
+ NULL the array will not be filled in, but the return
+ code still indicates the number of current
+ sessions. Note that instead of an empty array NULL may
+ be returned and should be considered equivalent to an
+ empty array.</para>