diff -Nru bash-5.2.orig/tests/printf2.sub bash-5.2/tests/printf2.sub
--- tests/printf2.sub	2022-09-26 19:44:37.995231398 +0000
+++ tests/printf2.sub	2022-09-26 19:45:11.358414301 +0000
@@ -1,12 +1,14 @@
 unset LC_ALL LC_CTYPE
 
 export LANG=C
+export LC_ALL=C
 case $(printf %d\\n \'A) in
 65)	;;
 *)	echo "printf2.sub: character conversion failed" >&2  ;;
 esac
 
 export LANG=en_US.UTF-8
+export LC_ALL=en_US.UTF-8
 case $(printf %d\\n \'À) in
 192)	exit 0;;
 *)	echo "printf2.sub: multibyte character conversion failed" >&2 ; exit 2 ;;