qmail-pw2u(8) on Linux
The text 8714452bcede, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
build address assignments from a passwd file
Flags it lists
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-/ -
-C -
-H -
-U -
-cchar -
-h -
-o -
-u