--- syncoid.orig	2025-06-11 08:10:52.000000000 -0400
+++ syncoid	2025-12-04 04:25:27.941325000 -0500
@@ -2197,7 +2197,7 @@
 	$date{'mday'} = sprintf ("%02u", $mday);
 	$date{'mon'} = sprintf ("%02u", ($mon + 1));
 	$date{'tzoffset'} = sprintf ("GMT%s%02d:%02u", $sign, $hours, $minutes);
-	$date{'stamp'} = "$date{'year'}-$date{'mon'}-$date{'mday'}:$date{'hour'}:$date{'min'}:$date{'sec'}-$date{'tzoffset'}";
+	$date{'stamp'} = "$date{'year'}-$date{'mon'}-$date{'mday'}_$date{'hour'}$date{'min'}$date{'sec'}-$date{'tzoffset'}";
 	return %date;
 }
 
@@ -2400,45 +2400,129 @@
 
 Options:
 
-  --compress=FORMAT     Compresses data during transfer. Currently accepted options are gzip, pigz-fast, pigz-slow, zstd-fast, zstdmt-fast, zstd-slow, zstdmt-slow, lz4, xz, lzo (default) & none
-  --identifier=EXTRA    Extra identifier which is included in the snapshot name. Can be used for replicating to multiple targets.
-  --recursive|r         Also transfers child datasets
-  --skip-parent         Skips syncing of the parent dataset. Does nothing without '--recursive' option.
-  --source-bwlimit=<limit k|m|g|t>  Bandwidth limit in bytes/kbytes/etc per second on the source transfer
-  --target-bwlimit=<limit k|m|g|t>  Bandwidth limit in bytes/kbytes/etc per second on the target transfer
-  --mbuffer-size=VALUE  Specify the mbuffer size (default: 16M), please refer to mbuffer(1) manual page.
-  --pv-options=OPTIONS  Configure how pv displays the progress bar, default '-p -t -e -r -b'
-  --no-stream           Replicates using newest snapshot instead of intermediates
-  --no-sync-snap        Does not create new snapshot, only transfers existing
-  --keep-sync-snap      Don't destroy created sync snapshots
-  --create-bookmark     Creates a zfs bookmark for the newest snapshot on the source after replication succeeds (only works with --no-sync-snap)
-  --use-hold            Adds a hold to the newest snapshot on the source and target after replication succeeds and removes the hold after the next successful replication. The hold name includes the identifier if set. This allows for separate holds in case of multiple targets
-  --preserve-recordsize Preserves the recordsize on initial sends to the target
-  --preserve-properties Preserves locally set dataset properties similar to the zfs send -p flag but this one will also work for encrypted datasets in non raw sends
-  --no-rollback         Does not rollback snapshots on target (it probably requires a readonly target)
-  --delete-target-snapshots With this argument snapshots which are missing on the source will be destroyed on the target. Use this if you only want to handle snapshots on the source.
-  --exclude=REGEX       DEPRECATED. Equivalent to --exclude-datasets, but will be removed in a future release. Ignored if --exclude-datasets is also provided.
-  --exclude-datasets=REGEX Exclude specific datasets which match the given regular expression. Can be specified multiple times
-  --exclude-snaps=REGEX Exclude specific snapshots that match the given regular expression. Can be specified multiple times. If a snapshot matches both the exclude-snaps and include-snaps patterns, then it will be excluded.
-  --include-snaps=REGEX Only include snapshots that match the given regular expression. Can be specified multiple times. If a snapshot matches both the exclude-snaps and include-snaps patterns, then it will be excluded.
-  --sendoptions=OPTIONS Use advanced options for zfs send (the arguments are filtered as needed), e.g. syncoid --sendoptions="Lc e" sets zfs send -L -c -e ...
-  --recvoptions=OPTIONS Use advanced options for zfs receive (the arguments are filtered as needed), e.g. syncoid --recvoptions="ux recordsize o compression=lz4" sets zfs receive -u -x recordsize -o compression=lz4 ...
+  --compress=FORMAT
+      Compresses data during transfer.  Currently accepted options are:
+          lzo (default)   pigz-slow    zstdmt-fast
+          gzip            xz           zstdmt-slow
+          lz4             zstd-fast    none
+          pigz-fast       zstd-slow
+
+  --identifier=EXTRA
+      Extra identifier which is included in the snapshot name.
+      Can be used for replicating to multiple targets.
+
+  --recursive|r
+      Also transfers child datasets
+
+  --skip-parent
+      Skips syncing of the parent dataset.
+      Does nothing without '--recursive' option.
+
+  --source-bwlimit=<limit k|m|g|t>
+      Bandwidth limit in bytes/kbytes/etc per second on the source transfer
+
+  --target-bwlimit=<limit k|m|g|t>
+      Bandwidth limit in bytes/kbytes/etc per second on the target transfer
+
+  --mbuffer-size=VALUE
+      Specify the mbuffer size (default: 16M), please refer to mbuffer(1)
+      manual page.
+
+  --pv-options=OPTIONS
+      Configure how pv displays the progress bar, default '-p -t -e -r -b'
+
+  --no-stream
+      Replicates using newest snapshot instead of intermediates
+
+  --no-sync-snap
+      Does not create new snapshot, only transfers existing
+
+  --keep-sync-snap
+      Don't destroy created sync snapshots
+
+  --create-bookmark
+      Creates a zfs bookmark for the newest snapshot on the source after
+      replication succeeds (only works with --no-sync-snap)
+
+  --use-hold
+      Adds a hold to the newest snapshot on the source and target after
+      replication succeeds and removes the hold after the next successful
+      replication.  The hold name includes the identifier if set.
+      This allows for separate holds in case of multiple targets
+
+  --preserve-recordsize
+      Preserves the recordsize on initial sends to the target
+
+  --preserve-properties
+      Preserves locally set dataset properties similar to the zfs send
+      -p flag but this one will also work for encrypted datasets in
+      non-raw sends
+
+  --no-rollback
+      Does not rollback snapshots on target (it probably requires a readonly
+      target)
+
+  --delete-target-snapshots
+      With this argument snapshots which are missing on the source will
+      be destroyed on the target.  Use this if you only want to handle
+      snapshots on the source.
+
+  --exclude=REGEX (DEPRECATED)
+      Equivalent to --exclude-datasets, but will be removed in a future
+      release.  Ignored if --exclude-datasets is also provided.
+
+  --exclude-datasets=REGEX
+      Exclude specific datasets which match the given regular expression.
+      Can be specified multiple times
+
+  --exclude-snaps=REGEX
+      Exclude specific snapshots that match the given regular expression.
+      Can be specified multiple times.  If a snapshot matches both the
+      exclude-snaps and include-snaps patterns, then it will be excluded.
+
+  --include-snaps=REGEX
+      Only include snapshots that match the given regular expression.
+      Can be specified multiple times.  If a snapshot matches both the
+      exclude-snaps and include-snaps patterns, then it will be excluded.
+
+  --sendoptions=OPTIONS
+      Use advanced options for zfs send (the arguments are filtered as
+      needed), e.g., syncoid --sendoptions="Lc e" sets zfs send -L -c -e ...
+
+  --recvoptions=OPTIONS
+      Use advanced options for zfs receive (the arguments are filtered as
+      needed), e.g., syncoid --recvoptions="ux recordsize o compression=lz4"
+      sets zfs receive -u -x recordsize -o compression=lz4 ...
+
   --sshconfig=FILE      Specifies an ssh_config(5) file to be used
   --sshkey=FILE         Specifies a ssh key to use to connect
   --sshport=PORT        Connects to remote on a particular port
   --sshcipher|c=CIPHER  Passes CIPHER to ssh to use a particular cipher set
-  --sshoption|o=OPTION  Passes OPTION to ssh for remote usage. Can be specified multiple times
-  --insecure-direct-connection=IP:PORT[,IP:PORT]  WARNING: DATA IS NOT ENCRYPTED. First address pair is for connecting to the target and the second for listening at the target
+
+  --sshoption|o=OPTION
+      Passes OPTION to ssh for remote usage.
+      Can be specified multiple times
+
+  --insecure-direct-connection=IP:PORT[,IP:PORT]
+      WARNING: DATA IS NOT ENCRYPTED.  First address pair is for connecting
+      to the target and the second for listening at the target
 
   --help                Prints this helptext
   --version             Prints the version number
-  --debug               Prints out a lot of additional information during a syncoid run
+  --debug               Prints much more information during a syncoid run
   --monitor-version     Currently does nothing
   --quiet               Suppresses non-error output
   --dumpsnaps           Dumps a list of snapshots during the run
-  --no-command-checks   Do not check command existence before attempting transfer. Not recommended
   --no-resume           Don't use the ZFS resume feature if available
   --no-clone-handling   Don't try to recreate clones on target
-  --no-privilege-elevation  Bypass the root check, for use with ZFS permission delegation
 
-  --force-delete        Remove target datasets recursively, if there are no matching snapshots/bookmarks (also overwrites conflicting named snapshots)
+  --no-command-checks
+      Do not check command existence before attempting transfer.
+      Not recommended
+
+  --no-privilege-elevation
+      Bypass the root check, for use with ZFS permission delegation
+
+  --force-delete
+      Remove target datasets recursively, if there are no matching
+      snapshots/bookmarks (also overwrites conflicting named snapshots)