pgpewrap [ flags ] -- prefix [ recipients ]
This is a little C program which does some command line munging: The first argument is a command to be executed. When pgpewrap encounters a "--" (dash-dash) argument, it will interpret the next argument as a prefix which is put in front of all following arguments.
pgpewrap pgpe file -- -r a b c
pgpe file -r a -r b -r c
This script is needed with PGP 5 and with GPG, since their command line interfaces can't be properly served by neomutt's format mechanism.