fixed indentation to match original format

Author: Paul Stanisci

src/Venturecraft/Revisionable/RevisionableTrait.php

@@ -126,7 +126,7 @@ public function preSave()
             // we can only safely compare basic items,
             // so for now we drop any object based items, like DateTime
             foreach ($this->updatedData as $key => $val) {
-				$castCheck = ['object', 'array'];
+                $castCheck = ['object', 'array'];
                 if (isset($this->casts[$key]) && in_array(gettype($val), $castCheck) && in_array($this->casts[$key], $castCheck) && isset($this->originalData[$key])) {
                     // Sorts the keys of a JSON object due Normalization performed by MySQL
                     // So it doesn't set false flag if it is changed only order of key or whitespace after comma