Correct description of minimum password age.
@@ -49,7 +49,7 @@ public interface PasswordPolicy {
*
* @return
* The minimum number of days which must elapse before the user's
- * password must be reset, or zero if this restriction does not apply.
+ * password may be reset, or zero if this restriction does not apply.
*
* @throws GuacamoleException
* If the minimum password age cannot be parsed from
