Fixed argument processing of config.bootoptions

Instead of adding an extra space to make the subsequent reading
to work, use an awk script that does it without nasty workarounds

dracut/modules.d/90kiwi-dump/kiwi-ramdisk-deployment-generator.sh

@@ -26,16 +26,12 @@ GENERATOR_DIR="$1"
 
 [ -e /config.bootoptions ] || exit 1
 
-# Add a space to /config.bootoptions to make sure the
-# following token based read captures all entries
-echo -n ' ' >> /config.bootoptions
-
 root_uuid=$(
-    while read -r -d ' ' opt; do echo "${opt}";done < /config.bootoptions |\
+    awk '{ for(i=1; i <= NF; i++) {print $i } }' /config.bootoptions |\
     grep root= | cut -f2- -d=
 )
 
-[ -z "${root_uuid}" ] && exit 1
+[ -z "${root_uuid}" ] && exit 2
 
 {
     echo "[Unit]"