ssh(1) on macOS
The text 7ca880726d27, as Mac OS X 10.2.8.G5, Mac OS X 10.2.8, Mac OS X 10.2.7, Mac OS X 10.2.6, Mac OS X 10.2.5, Mac OS X 10.2.4, Mac OS X 10.2.3, Mac OS X 10.2.2, Mac OS X 10.2.1, Mac OS X 10.2 shipped it.
OpenSSH SSH client (remote login program)
Flags it lists
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-1 -
-2 -
-4 -
-6 -
-A -
-C -
-D -
-F -
-I -
-L -
-N -
-P -
-R -
-T -
-X -
-a -
-b -
-c -
-e -
-f -
-g -
-i -
-k -
-l -
-m -
-n -
-o -
-p -
-q -
-s -
-t -
-v -
-x