Fix documentation warnings for struct journal_s in jbd2.h

Fix the following warnings:
./include/linux/jbd2.h:1303: warning: Function parameter or struct member 'j_transaction_overhead_buffers' not described in 'journal_s'
./include/linux/jbd2.h:1303: warning: Excess struct member 'j_transaction_overhead' description in 'journal_s'

Signed-off-by: Vamsi Krishna Brahmajosyula <vamsikrishna.brahmajosyula@gmail.com>
---
 include/linux/jbd2.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 5157d92b6f23..17662eae408f 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1086,7 +1086,7 @@ struct journal_s
 	int			j_revoke_records_per_block;
 
 	/**
-	 * @j_transaction_overhead:
+	 * @j_transaction_overhead_buffers:
 	 *
 	 * Number of blocks each transaction needs for its own bookkeeping
 	 */
-- 
2.46.0