tests: fix test regression due to additional output

This test has been failing since commit 5285ea8c (sadly, since
last July; thankfully, unreleased).

* tests/m4sugar.at (m4@&t@_require: nested): Fix test.

Signed-off-by: Eric Blake <eblake@redhat.com>

diff --git a/tests/m4sugar.at b/tests/m4sugar.at
index 13ba2fa95c47d0c2fd0e9e8fe57073177f9e3ab6..997e2ddd82c9d5651b300767a4b1a1aa9d43836e 100644 (file)
--- a/tests/m4sugar.at
+++ b/tests/m4sugar.at
@@ -618,6 +618,7 @@ c
 post
 ]],
 [[script.4s:15: warning: m4@&t@_require: `a' was expanded before it was required
+script.4s:15: http://www.gnu.org/software/autoconf/manual/autoconf.html#Expanded-Before-Required
 script.4s:5: b is expanded from...
 script.4s:6: c is expanded from...
 script.4s:14: outer is expanded from...