Btrfs-progs: add a test image for the transid fixer in btrfsck

This is a verification test for the transid recow functionality of btrfsck.
I've also adjusted the test script to spit out which image it's testing so I can
be sure the image was getting tested.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

tests/fsck-tests.sh

@@ -17,6 +17,7 @@ rm -f fsck-tests-results.txt
 
 for i in $(find $here/tests/fsck-tests -name '*.img')
 do
+	echo "     [TEST]    $(basename $i)"
 	echo "testing image $i" >> fsck-tests-results.txt
 	$here/btrfs-image -r $i test.img >> fsck-tests-results.txt 2>&1 \
 		|| _fail "restore failed"