ssl(1) on Linux
The text 417e9e38c8f5, as Debian 2.1 (Slink), Debian 2.0 (Hamm) shipped it.
syntax/semantic language preprocessor, for parser description/generation
Flags it lists
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-D -
-E -
-L -
-T -
-e -
-h -
-i -
-l -
-s -
-t