telnet(1) on OpenBSD
The text 65382d3e9432, as OpenBSD 7.8, OpenBSD 7.7, OpenBSD 7.6, OpenBSD 7.5, OpenBSD 7.4, OpenBSD 7.3, OpenBSD 7.2, OpenBSD 7.1, OpenBSD 7.0, OpenBSD 6.9, OpenBSD 6.8, OpenBSD 6.7 shipped it.
user interface to the TELNET protocol
Flags it lists
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-4 -
-6 -
-7 -
-8 -
-D -
-E -
-K -
-L -
-V -
-a -
-b -
-c -
-e -
-l -
-n -
-r