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-rw-r--r--string.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/string.c b/string.c
index 26f2324b95a..bc504ec3edb 100644
--- a/string.c
+++ b/string.c
@@ -6084,7 +6084,7 @@ rb_str_downcase_bang(int argc, VALUE *argv, VALUE str)
* by case mapping operations.
*
* Non-ASCII case mapping/folding is currently supported for UTF-8,
- * UTF-16BE/LE, UTF-32BE/LE, and ISO-8859-1 Strings/Symbols.
+ * UTF-16BE/LE, UTF-32BE/LE, and ISO-8859-1~16 Strings/Symbols.
* This support will be extended to other encodings.
*
* "hEllO".downcase #=> "hello"