busybox: Set __progname in getopt for -n to work

[termux-packages] / packages / libmosquitto / mosquitto.subpackage.sh

TERMUX_SUBPKG_DEPENDS="libmosquitto"
TERMUX_SUBPKG_INCLUDE="bin/mosquitto_pub bin/mosquitto_sub"
TERMUX_SUBPKG_DESCRIPTION="mosquitto_pub and _sub clients"