Change (P)Config::set return value to bool

src/Core/Config.php

@@ -95,7 +95,7 @@ class Config extends BaseObject
 	 * @param string $key    The configuration key to set
 	 * @param mixed  $value  The value to store
 	 *
-	 * @return mixed Stored $value or false if the database update failed
+	 * @return bool Operation success
 	 */
 	public static function set($family, $key, $value)
 	{

src/Core/Config/IConfigAdapter.php

@@ -53,7 +53,7 @@ interface IConfigAdapter
 	 * @param string $key    The configuration key to set
 	 * @param mixed  $value  The value to store
 	 *
-	 * @return mixed Stored $value or false if the database update failed
+	 * @return bool Operation success
 	 */
 	public function set($cat, $k, $value);
 

src/Core/Config/IPConfigAdapter.php

@@ -57,7 +57,7 @@ interface IPConfigAdapter
 	 * @param string $k     The configuration key to set
 	 * @param string $value The value to store
 	 *
-	 * @return mixed Stored $value or false
+	 * @return bool Operation success
 	 */
 	public function set($uid, $cat, $k, $value);
 

src/Core/Config/JITConfigAdapter.php

@@ -106,7 +106,6 @@ class JITConfigAdapter extends BaseObject implements IConfigAdapter
 
 		if ($result) {
 			$this->in_db[$cat][$k] = true;
-			return $value;
 		}
 
 		return $result;

src/Core/Config/JITPConfigAdapter.php

@@ -98,7 +98,6 @@ class JITPConfigAdapter extends BaseObject implements IPConfigAdapter
 
 		if ($result) {
 			$this->in_db[$uid][$cat][$k] = true;
-			return $value;
 		}
 
 		return $result;

src/Core/PConfig.php

@@ -93,7 +93,7 @@ class PConfig extends BaseObject
 	 * @param string $key    The configuration key to set
 	 * @param string $value  The value to store
 	 *
-	 * @return mixed Stored $value or false
+	 * @return bool Operation success
 	 */
 	public static function set($uid, $family, $key, $value)
 	{