fix(handlers): use args rather than stdin

handlers/deb/install

@@ -1,8 +1,7 @@
 #!/bin/sh
 # Install a package from a local or downloaded .deb-file and remove it
 loc="/tmp/install.deb"
-arg="$(read)"
-case "$arg" in
+case "$1" in
   (http*) sudo wget -O "$loc" "$arg";;
   (*) loc="$arg";;
 esac

handlers/make/install

@@ -1,4 +1,3 @@
 #!/usr/bin/env sh
-arg="$(read)"
-cd "$arg"
+cd "$1"
 sudo checkinstall

handlers/script/install

@@ -1,6 +1,6 @@
 #!/bin/sh
-read arg
-read name
+arg=$1
+name=$2
 location="/usr/local/bin/${name:-$(basename "$arg")}"
 curl "$arg" | sudo tee "$location" > /dev/null
 sudo chmod +x "$location"