add filter argument to assertDumpEquals()

Author: xabbuh

components/var_dumper/advanced.rst

@@ -206,7 +206,7 @@ The output format of a dumper can be fine tuned by the two flags
 ``DUMP_STRING_LENGTH`` and ``DUMP_LIGHT_ARRAY`` which are passed as a bitmap
 in the third constructor argument. They can also be set via environment 
 variables when using
-:method:`assertDumpEquals($dump, $data, $message) <Symfony\\Component\\VarDumper\\Test\\VarDumperTestTrait::assertDumpEquals>`
+:method:`assertDumpEquals($dump, $data, $filter, $message) <Symfony\\Component\\VarDumper\\Test\\VarDumperTestTrait::assertDumpEquals>`
 during unit testing.
 
 .. versionadded:: 3.1