dont set empty as default

deploy_scripts/deployment.sh

@@ -11,9 +11,9 @@ echo "DEBUG_1 $0 $1 $2 $3 $4 <secret> $6"
 if [ -z ${1+x} ]; then NEW_DIR=`pwd`; else NEW_DIR=$1; fi
 if [ -z ${2+x} ]; then API_URL=https://datacatalog.fz-juelich.de/; else API_URL=$2; fi
 if [ -z ${3+x} ]; then SERVER_DOMAIN=datacatalog.fz-juelich.de; else SERVER_DOMAIN=$3; fi
-if [ -z ${4+x} ]; then DATACATALOG_APISERVER_CLIENT_ID=""; else DATACATALOG_APISERVER_CLIENT_ID=$4; fi
-if [ -z ${5+x} ]; then DATACATALOG_APISERVER_CLIENT_SECRET=""; else DATACATALOG_APISERVER_CLIENT_SECRET=$5; fi
-if [ -z ${6+x} ]; then DATACATALOG_APISERVER_SERVER_METADATA_URL=""; else DATACATALOG_APISERVER_SERVER_METADATA_URL=$6; fi
+DATACATALOG_APISERVER_CLIENT_ID="$4"
+DATACATALOG_APISERVER_CLIENT_SECRET="$5"
+DATACATALOG_APISERVER_SERVER_METADATA_URL="$6"
 
 cd $NEW_DIR