Adapt t0040 to output from ipfs2

The ouput from "ipfs add" changed in ipfs2.
With the changes in this commit, this output change doesn't
prevent the test to pass.

With TEST_NO_FUSE=1 test t0040 now passes on my Linux machine.

License: MIT
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>

test/t0040-add-and-cat.sh

@@ -17,7 +17,7 @@ test_expect_success "ipfs add succeeds" '
 
 test_expect_success "ipfs add output looks good" '
 	HASH="QmVr26fY1tKyspEJBniVhqxQeEjhF78XerGiqWAwraVLQH" &&
-	echo "added $HASH $(pwd)/mountdir/hello.txt" >expected &&
+	echo "added $HASH mountdir/hello.txt" >expected &&
 	test_cmp expected actual
 '
 
@@ -58,7 +58,7 @@ test_expect_success "ipfs add bigfile succeeds" '
 
 test_expect_success "ipfs add bigfile output looks good" '
 	HASH="QmWXysX1oysyjTqd5xGM2T1maBaVXnk5svQv4GKo5PsGPo" &&
-	echo "added $HASH $(pwd)/mountdir/bigfile" >expected &&
+	echo "added $HASH mountdir/bigfile" >expected &&
 	test_cmp expected actual
 '