postconf(1) on Linux
The text fef8925d1fc6, as Debian 7 (Wheezy) shipped it.
Postfix configuration utility
Flags it lists
-
-# -
-A -
-C -
-M -
-a -
-b -
-c -
-d -
-e -
-f -
-h -
-l -
-m -
-n -
-t -
-v