Fix odd not working for negative numbers

doc/advanced.rst

@@ -359,7 +359,7 @@ This is used by many of the tests built into Twig::
             $compiler
                 ->raw('(')
                 ->subcompile($this->getNode('node'))
-                ->raw(' % 2 == 1')
+                ->raw(' % 2 != 0')
                 ->raw(')')
             ;
         }

src/Node/Expression/Test/OddTest.php

@@ -28,7 +28,7 @@ class OddTest extends TestExpression
         $compiler
             ->raw('(')
             ->subcompile($this->getNode('node'))
-            ->raw(' % 2 == 1')
+            ->raw(' % 2 != 0')
             ->raw(')')
         ;
     }

tests/Fixtures/tests/odd.test

@@ -3,8 +3,10 @@
 --TEMPLATE--
 {{ 1 is odd ? 'ok' : 'ko' }}
 {{ 2 is odd ? 'ko' : 'ok' }}
+{{ -1 is odd ? 'ok' : 'ko' }}
 --DATA--
 return []
 --EXPECT--
 ok
 ok
+ok