Fix coding standards.

Cake/ORM/Entity.php

@@ -385,7 +385,7 @@ public function dirty($property, $isDirty = null) {
 			unset($this->_dirty[$property]);
 			return false;
 		}
-		
+
 		$this->_dirty[$property] = true;
 		return true;
 	}

Cake/ORM/Query.php

@@ -614,9 +614,17 @@ public function first() {
 		$this->bufferResults();
 		$this->_results = $this->execute();
 		return $this->_results->one();
-
 	}
 
+/**
+ * Toggle hydrating entites.
+ *
+ * If set to false array results will be returned
+ *
+ * @param boolean|null $enable Use a boolean to set the hydration mode.
+ *   Null will fetch the current hydration mode.
+ * @return boolean|Query A boolean when reading, and $this when setting the mode.
+ */
 	public function hydrate($enable = null) {
 		if ($enable === null) {
 			return $this->_hydrate;

Cake/ORM/Table.php

@@ -869,6 +869,7 @@ protected function _insert($entity, $data) {
  * @param \Cake\ORM\Entity the subject entity from were $data was extracted
  * @param array $data The actual data that needs to be saved
  * @return \Cake\ORM\Entity|boolean
+ * @throws \InvalidArgumentException When primary key data is missing.
  */
 	protected function _update($entity, $data) {
 		$primaryKey = $entity->extract((array)$this->primaryKey());