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9623 zfs.1m uses wrong snapshot names in Example 15

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          --- old/usr/src/man/man1m/zfs.1m
          +++ new/usr/src/man/man1m/zfs.1m
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  23   23  .\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
  24   24  .\" Copyright (c) 2011, 2016 by Delphix. All rights reserved.
  25   25  .\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
  26   26  .\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
  27   27  .\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
  28   28  .\" Copyright (c) 2014 Integros [integros.com]
  29   29  .\" Copyright 2018 Nexenta Systems, Inc.
  30   30  .\" Copyright 2018 Joyent, Inc.
  31   31  .\" Copyright (c) 2018 Datto Inc.
  32   32  .\"
  33      -.Dd Feb 10, 2018
       33 +.Dd Jan 05, 2019
  34   34  .Dt ZFS 1M
  35   35  .Os
  36   36  .Sh NAME
  37   37  .Nm zfs
  38   38  .Nd configures ZFS file systems
  39   39  .Sh SYNOPSIS
  40   40  .Nm
  41   41  .Op Fl \?
  42   42  .Nm
  43   43  .Cm create
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3763 3763  .Ed
3764 3764  .It Sy Example 15 No Performing a Rolling Snapshot
3765 3765  The following example shows how to maintain a history of snapshots with a
3766 3766  consistent naming scheme.
3767 3767  To keep a week's worth of snapshots, the user destroys the oldest snapshot,
3768 3768  renames the remaining snapshots, and then creates a new snapshot, as follows:
3769 3769  .Bd -literal
3770 3770  # zfs destroy -r pool/users@7daysago
3771 3771  # zfs rename -r pool/users@6daysago @7daysago
3772 3772  # zfs rename -r pool/users@5daysago @6daysago
3773      -# zfs rename -r pool/users@yesterday @5daysago
3774      -# zfs rename -r pool/users@yesterday @4daysago
3775      -# zfs rename -r pool/users@yesterday @3daysago
     3773 +# zfs rename -r pool/users@4daysago @5daysago
     3774 +# zfs rename -r pool/users@3daysago @4daysago
     3775 +# zfs rename -r pool/users@2daysago @3daysago
3776 3776  # zfs rename -r pool/users@yesterday @2daysago
3777 3777  # zfs rename -r pool/users@today @yesterday
3778 3778  # zfs snapshot -r pool/users@today
3779 3779  .Ed
3780 3780  .It Sy Example 16 No Setting sharenfs Property Options on a ZFS File System
3781 3781  The following commands show how to set
3782 3782  .Sy sharenfs
3783 3783  property options to enable
3784 3784  .Sy rw
3785 3785  access for a set of
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