format_obj: make it static
diff --git a/Python/formatter_unicode.c b/Python/formatter_unicode.c
index cd66670..4b0fd91 100644
--- a/Python/formatter_unicode.c
+++ b/Python/formatter_unicode.c
@@ -1347,7 +1347,7 @@
/************************************************************************/
/*********** built in formatters ****************************************/
/************************************************************************/
-int
+static int
format_obj(PyObject *obj, _PyUnicodeWriter *writer)
{
PyObject *str;