--- xfs-cmds/xfstests/common.orig	2008-11-21 14:13:12.000000000 -0800
+++ xfs-cmds/xfstests/common	2008-11-21 14:15:37.000000000 -0800
@@ -107,6 +107,7 @@
     -nfs                test NFS
     -l			line mode diff (default)
     -xdiff		graphical mode diff
+    -udiff		show unified diff
     -n			show me, do not run tests
     -q			quick [deprecated]
     -T			output timestamps
@@ -157,6 +158,11 @@
 	    fi
 	    ;;
 
+	-udiff)	# show a unified diff
+	    xpand=false
+	    diff="$diff -u"
+	    ;;
+
 	-q)	# "quick", no longer used - always quick :-)
 	    xpand=false
 	    ;;