gphelp(1) on Linux
The text 912431c1d790, as Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
GP-PARI online help script
Flags it lists
-
-cb -
-ch -
-color_bold -
-color_help -
-color_underline -
-cu -
-detex -
-k -
-raw -
-to_pod