csync2(8) on Linux
The text 09c3f1707c23, as Debian 11 (Bullseye) shipped it.
cluster synchronization tool, 2nd generation
Flags it lists
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-TT -
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-W -
-X -
-c -
-d -
-i -
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-iii -
-l -
-m -
-r -
-t