Correct tiny typo in model.defaults.js Closes issue 169 (DataTables/D…

…ataTablesSrc#169)

Sync to source repo @15dcb2864aa85745129ef1d16b3fe4b3a3d4b910

datatables.json

@@ -8,6 +8,6 @@
         "js/dataTables.bootstrap4.min.js"
     ],
     "src-repo": "http://github.com/DataTables/DataTablesSrc",
-    "last-sync": "4f1dfc8758474a400c329e0eda0cd02311f2d65c",
+    "last-sync": "15dcb2864aa85745129ef1d16b3fe4b3a3d4b910",
     "last-tag": "1.10.21"
 }