xfs: fix up inode validation failure message

"xfs_iread: validation failed for inode 96 failed"

One "failed" seems like enough.
Signed-off-by: NEric Sandeen <sandeen@redhat.com>
Reviewed-by: NAlex Elder <elder@linaro.org>
Reviewed-by: NBill O'Donnell <billodo@redhat.com>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>

fs/xfs/libxfs/xfs_inode_buf.c

@@ -508,7 +508,7 @@ xfs_iread(
 
 	/* even unallocated inodes are verified */
 	if (!xfs_dinode_verify(mp, ip->i_ino, dip)) {
-		xfs_alert(mp, "%s: validation failed for inode %lld failed",
+		xfs_alert(mp, "%s: validation failed for inode %lld",
 				__func__, ip->i_ino);
 
 		XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, dip);