Code clean up.

app/TransactionRules/Triggers/AmountLess.php

@@ -18,7 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with Firefly III.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 declare(strict_types=1);
 
 namespace FireflyIII\TransactionRules\Triggers;
@@ -27,13 +26,10 @@ use FireflyIII\Models\TransactionJournal;
 use Log;
 
 /**
- * Class AmountLess
- *
- * @package FireflyIII\TransactionRules\Triggers
+ * Class AmountLess.
  */
 final class AmountLess extends AbstractTrigger implements TriggerInterface
 {
-
     /**
      * A trigger is said to "match anything", or match any given transaction,
      * when the trigger value is very vague or has no restrictions. Easy examples
@@ -52,7 +48,7 @@ final class AmountLess extends AbstractTrigger implements TriggerInterface
      */
     public static function willMatchEverything($value = null)
     {
-        if (!is_null($value)) {
+        if (null !== $value) {
             return false;
         }
         Log::error(sprintf('Cannot use %s with a null value.', self::class));