Fix typo

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1761437 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/sling/api/resource/observation/ResourceChange.java b/src/main/java/org/apache/sling/api/resource/observation/ResourceChange.java
index 851075a..621a5f5 100644
--- a/src/main/java/org/apache/sling/api/resource/observation/ResourceChange.java
+++ b/src/main/java/org/apache/sling/api/resource/observation/ResourceChange.java
@@ -28,8 +28,8 @@
 /**
  * A resource change event is immutable.
  *
- * A change event can either be local or external. Local changes happended
- * on the same instance, while external changes happended on a different
+ * A change event can either be local or external. Local changes happened
+ * on the same instance, while external changes happened on a different
  * instance.
  *
  * Resource listeners only receive external changes if they mark themselves