[PATCH 3/3] btrfs/26[67]: update the stale comments

[Qu Wenruo <wqu@suse.com>]

Test case btrfs/266 is verifying the buffered read repair on RAID1C3,
and btrfs/267 is verifying the direct IO read repair on RAID1C3.

However btrfs/267 is using incorrect comments, it says the test case is
verify buffered read repair, but it's not the case.

Fix those stale comments by explicitly mention buffered/direct IO for
each test case. (btrfs/266 for buffered, btrfs/267 for direct)

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 tests/btrfs/266 | 4 ++--
 tests/btrfs/267 | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/btrfs/266 b/tests/btrfs/266
index 3490ecce..f8407c98 100755
--- a/tests/btrfs/266
+++ b/tests/btrfs/266
@@ -5,8 +5,8 @@
 #
 # FS QA Test 266
 #
-# Test that btrfs raid repair on a raid1c3 profile can repair interleaving
-# errors on all mirrors.
+# Test that btrfs buffered read repair on a raid1c3 profile can repair
+# interleaving errors on all mirrors.
 #
 
 . ./common/preamble
diff --git a/tests/btrfs/267 b/tests/btrfs/267
index 66e08d18..22c4aeaa 100755
--- a/tests/btrfs/267
+++ b/tests/btrfs/267
@@ -5,7 +5,7 @@
 #
 # FS QA Test 267
 #
-# Test that btrfs buffered read repair on a raid1c3 profile can repair
+# Test that btrfs direct IO read repair on a raid1c3 profile can repair
 # interleaving errors on all mirrors.
 #
 
-- 
2.51.0