Merge branch '5.6' of github.com:laravel/framework into 5.6

Author: taylorotwell

src/Illuminate/Database/Eloquent/Relations/Relation.php

@@ -165,7 +165,7 @@ public function touch()
 
         if (! $model::isIgnoringTouch()) {
             $this->rawUpdate([
-                $model->getUpdatedAtColumn() => $model->freshTimestampString()
+                $model->getUpdatedAtColumn() => $model->freshTimestampString(),
             ]);
         }
     }