diff -urN coreutils-9.1-orig/lib/quotearg.c coreutils-9.1/lib/quotearg.c
--- coreutils-9.1-orig/lib/quotearg.c	2022-04-08 20:22:26 +0900
+++ coreutils-9.1/lib/quotearg.c	2022-04-16 23:11:36 +0900
@@ -204,6 +204,7 @@
 
   if (translation != msgid)
     return translation;
+  return (s == clocale_quoting_style ? "\"" : "'");
 
   /* For UTF-8 and GB-18030, use single quotes U+2018 and U+2019.
      Here is a list of other locales that include U+2018 and U+2019: