tests: od: ensure -j1 /dev/null succeeds

Users may be using this to convert bases.

* tests/od/od-j.sh: Add a test case.
https://github.com/coreutils/coreutils/pull/228

diff --git a/tests/od/od-j.sh b/tests/od/od-j.sh
index 4c76f9e7d4729dedf44a22f6e0cb310d2ac0460b..98e5f2c099011e64fc6e6f2fc51a11bff7b22cb1 100755 (executable)
--- a/tests/od/od-j.sh
+++ b/tests/od/od-j.sh
@@ -19,6 +19,8 @@
 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
 print_ver_ od
 
+od -j1 /dev/null || fail=1
+
 for file in ${srcdir=.}/tests/init.sh /proc/version /sys/kernel/profiling; do
   test -r $file || continue