priorize -m over dracut.conf, add --modules and get rid of automatic use of ./dracut.conf

Victor Lowther introduced -c to freely set dracut.conf. Means we can get rid of automatic use of ./dracut.conf if -l is used, use -c instead.

Second this patch prefers options before config files and adds an option -d|--drivers to set the modules= option.

Patch is built on top of Harald Hoyers merge tree
(git://git.surfsite.org/pub/git/dracut.git)

---

index d8da6d6..dad6687 100755
@@ -11,7 +11,8 @@

while (($# > 0)); do
case $1 in
-f|--force) force=yes;;

-	-m|--modules) dracutmodules="$2"; shift;;
+	-m|--modules) dracutmodules_l="$2"; shift;;
+	-d|--drivers) modules_l="$2"; shift;;
	-h|--help) echo "Usage: $0 [-f] <initramfs> <kernel-version>"
	    exit 1 ;;
	-v|--verbose) set -x;;

@@ -22,11 +23,12 @@ while (($# > 0)); do
esac
shift
done
-[[ -f $conffile ]] || {
- conffile="/etc/dracut.conf"
- [[ $allowlocal && -f dracut.conf ]] && conffile="dracut.conf"
-}
-. "$conffile"
+
+[[ -f $conffile ]] || [[ -f /etc/dracut.conf ]] && conffile="/etc/dracut.conf" +[[ -f $conffile ]] && . "$conffile"
+
+[[ $dracutmodules_l ]] && dracutmodules=$dracutmodule_l
+[[ $modules_l ]] && modules=$modules_l

[[ $allowlocal && -f dracut-functions ]] && dsrc="." || dsrc=/usr/lib/dracut . $dsrc/dracut-functions
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