--- tests/symlink-bad-length.at.orig	2019-11-13 23:07:23 UTC
+++ tests/symlink-bad-length.at
@@ -44,7 +44,7 @@ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
 # but that could hurt backward compatibility.
 
 AT_CHECK([
-base64 -d ARCHIVE.base64 > ARCHIVE || AT_SKIP_TEST
+b64decode -r ARCHIVE.base64 > ARCHIVE || AT_SKIP_TEST
 TZ=UTC cpio -ntv < ARCHIVE 2>stderr 
 cat stderr | grep -v \
     -e 'stored filename length is out of range' \