3 files changed, 4 insertions, 4 deletions
diff --git a/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php b/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php
index c32c86489..c761bff51 100644
--- a/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php
+++ b/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php
@@ -78,7 +78,7 @@ abstract class AbstractBackend implements BackendInterface
      *
      * This default may well be good enough for personal use, and calendars
      * that aren't very large. But if you anticipate high usage, big calendars
-     * or high loads, you are strongly adviced to optimize certain paths.
+     * or high loads, you are strongly advised to optimize certain paths.
      *
      * The best way to do so is override this method and to optimize
      * specifically for 'common filters'.
@@ -95,7 +95,7 @@ abstract class AbstractBackend implements BackendInterface
      * Note that especially time-range-filters may be difficult to parse. A
      * time-range filter specified on a VEVENT must for instance also handle
      * recurrence rules correctly.
-     * A good example of how to interprete all these filters can also simply
+     * A good example of how to interpret all these filters can also simply
      * be found in \Sabre\CalDAV\CalendarQueryFilter. This class is as correct
      * as possible, so it gives you a good idea on what type of stuff you need
      * to think of.
diff --git a/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php b/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php
index 2f48ab982..b9f112cf8 100644
--- a/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php
+++ b/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php
@@ -939,7 +939,7 @@ SQL;
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChangesForCalendar($calendarId, $syncToken, $syncLevel, $limit = null)
     {
diff --git a/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php b/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php
index c7f67d176..bfc1dafc2 100644
--- a/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php
+++ b/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php
@@ -77,7 +77,7 @@ interface SyncSupport extends BackendInterface
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChangesForCalendar($calendarId, $syncToken, $syncLevel, $limit = null);
 }