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-rw-r--r--io.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/io.c b/io.c
index 572b957..f988c1b 100644
--- a/io.c
+++ b/io.c
@@ -8043,6 +8043,9 @@ rb_io_make_open_file(VALUE obj)
* Specifies file open flags as integer.
* If +mode+ parameter is given, this parameter will be bitwise-ORed.
*
+ * :\external_encoding ::
+ * External encoding for the IO.
+ *
* :\internal_encoding ::
* Internal encoding for the IO. "-" is a synonym for the default internal
* encoding.