pxupgma(1) on Linux
The text 81f8493c7ac8, as Debian 12 (Bookworm) shipped it.
manual page for pxupgma 1.2
Flags it lists
-
--citation -
--help -
--outf -
--seqf -
--version -
-C -
-V -
-h -
-o -
-s