Issue #1588: Add complex.__format__.
diff --git a/Python/formatter_unicode.c b/Python/formatter_unicode.c
index 5cf5bad..6e3685d 100644
--- a/Python/formatter_unicode.c
+++ b/Python/formatter_unicode.c
@@ -9,9 +9,9 @@
#define FORMAT_STRING _PyUnicode_FormatAdvanced
-/* don't define FORMAT_LONG and FORMAT_FLOAT, since we can live
- with only the string versions of those. The builtin format()
- will convert them to unicode. */
+/* don't define FORMAT_LONG, FORMAT_FLOAT, and FORMAT_COMPLEX, since
+ we can live with only the string versions of those. The builtin
+ format() will convert them to unicode. */
#include "../Objects/stringlib/formatter.h"