[PATCH] btrfs: Use the correct style for SPDX License Identifier

[Nishad Kamdar]

This patch corrects the SPDX License Identifier style in
header file related to Btrfs File System support.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used).

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.

Suggested-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Nishad Kamdar <nishadkamdar@xxxxxxxxx>
---
 fs/btrfs/discard.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/discard.h b/fs/btrfs/discard.h
index 21a15776dac4..353228d62f5a 100644
--- a/fs/btrfs/discard.h
+++ b/fs/btrfs/discard.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef BTRFS_DISCARD_H
 #define BTRFS_DISCARD_H
-- 
2.17.1