btrfs/100, btrfs/101: fix device name in their golden output

btrfs/100, btrfs/101: fix device name in their golden output

After commit 88c0291d297c ("fstests: per-test dmerror instances"), the dm
error device name changed so that it's no longer a plain 'error-test' but
instead it's that plus a prefix matching the test number, such as
'error-test.100' for example. The tests btrfs/100 and btrfs/101 are still
using the plain old name 'error-test' in their golden output, which makes
them fail. So update them to use 'error-test.100' and 'error-test.101'.

Fixes: 88c0291d297c ("fstests: per-test dmerror instances")
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>