zfs-rollback.8: fix typo in example number

Reviewed-by: George Melikov <[email protected]>
Reviewed-by: Alexander Motin <[email protected]>
Reviewed-by: Alexander Ziaee <[email protected]>
Reviewed-by: Rob Norris <[email protected]>
Signed-off-by: Quentin Thébault <[email protected]>
Closes #17282
(cherry picked from commit 63de2d2)

Author: Defenso-QTH

man/man8/zfs-rollback.8

@@ -30,7 +30,7 @@
 .\" Copyright 2018 Nexenta Systems, Inc.
 .\" Copyright 2019 Joyent, Inc.
 .\"
-.Dd March 16, 2022
+.Dd April 28, 2025
 .Dt ZFS-ROLLBACK 8
 .Os
 .
@@ -75,7 +75,7 @@ Destroy any snapshots and bookmarks more recent than the one specified.
 .Sh EXAMPLES
 .\" These are, respectively, examples 8 from zfs.8
 .\" Make sure to update them bidirectionally
-.Ss Example 8 : No Rolling Back a ZFS File System
+.Ss Example 1 : No Rolling Back a ZFS File System
 The following command reverts the contents of
 .Ar pool/home/anne
 to the snapshot named