update-copyright-tests: improve portability
authorJoel E. Denny <jdenny@clemson.edu>
Wed, 5 Aug 2009 14:03:10 +0000 (10:03 -0400)
committerJim Meyering <meyering@redhat.com>
Wed, 5 Aug 2009 21:58:05 +0000 (23:58 +0200)
* tests/test-update-copyright.sh: Use cmp if diff cannot handle
-u or /dev/null.  Suggested by Jim Meyering and Eric Blake.


No differences found