Fix indentation in package.xml

package.xml

@@ -227,10 +227,10 @@
    </stability>
    <license uri="http://www.apache.org/licenses/LICENSE-2.0">Apache License</license>
    <notes>
-  ** Bug
-      * [PHP-1460] - Query with limit leaves open cursors on server
-      * [PHP-1462] - Fix static compilation
-      * [PHP-1464] - GridFS should not drop dupes when creating index
+** Bug
+    * [PHP-1460] - Query with limit leaves open cursors on server
+    * [PHP-1462] - Fix static compilation
+    * [PHP-1464] - GridFS should not drop dupes when creating index
    </notes>
   </release>
 
@@ -247,15 +247,15 @@
    </stability>
    <license uri="http://www.apache.org/licenses/LICENSE-2.0">Apache License</license>
    <notes>
-  ** Bug
-      * [PHP-1426] - Ensure buffer lengths are checked in bson_to_zval()
-      * [PHP-1448] - Ensure DBPointer namespace length reads as little-endian
-      * [PHP-1450] - Ensure strings are null-terminated in bson_to_zval()
-      * [PHP-1453] - Ensure BSON buffer is checked before reading regex pattern/flags
+** Bug
+    * [PHP-1426] - Ensure buffer lengths are checked in bson_to_zval()
+    * [PHP-1448] - Ensure DBPointer namespace length reads as little-endian
+    * [PHP-1450] - Ensure strings are null-terminated in bson_to_zval()
+    * [PHP-1453] - Ensure BSON buffer is checked before reading regex pattern/flags
 
-  ** Improvement
-      * [PHP-1449] - Ensure value is freed when bson_to_zval() encounters an error
-      * [PHP-1452] - bson_decode() should require exactly one document in buffer
+** Improvement
+    * [PHP-1449] - Ensure value is freed when bson_to_zval() encounters an error
+    * [PHP-1452] - bson_decode() should require exactly one document in buffer
    </notes>
   </release>