xfs: fix xchk_stats_estimate_bufsize to allow for the trailing null

LOLLM complains that xchk_stats_estimate_bufsize underestimates the
buffer size by 1 byte because scnprintf wants to store a null byte after
the newline in each line.  Each call to scnprintf overwrites the null
left by the previous call, but we still need the null byte for the last
line in the file.

Cc: stable@vger.kernel.org # v6.6
Fixes: d7a74cad8f4513 ("xfs: track usage statistics of online fsck")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Assisted-by: LOLLM # finding obvious bugs
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

0 files changed, 0 insertions, 0 deletions