# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1325838089 -3600
# Node ID 5bfc1b7e27348739c6f204ab2b1653ac543cf92e
# Parent  8d0c35a0ae1dbd1b4ad88e560f289bcb9abdcc4d
test-init.sh: correct the test for diff -u

* tests/test-init.sh: Also redirect stdout to /dev/null.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-01-06  Bruno Haible  <bruno@clisp.org>
+
+	test-init.sh: correct the test for diff -u
+	* tests/test-init.sh: Also redirect stdout to /dev/null.
+
 2012-01-05  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Use ', not `, for quoting output.
diff --git a/tests/test-init.sh b/tests/test-init.sh
--- a/tests/test-init.sh
+++ b/tests/test-init.sh
@@ -62,8 +62,8 @@
 EOF
   sed 's/	.*//;/^@@/d' out > k && mv k out
 
-  # Check the expected output only if compare is using diff -u.
-  if $(exec 2>/dev/null; diff -u out out < /dev/null); then
+  # Compare against expected output only if compare is using diff -u.
+  if (diff -u out out < /dev/null) > /dev/null 2>&1; then
     compare exp out || fail=1
   fi
   case $- in *x*) ;; *) test -s err && fail_ "err not empty: $(cat err)";; esac