Merge pull request #1060 from parkervcp/update/download_validator

update download script

scripts/download_link_validator.sh

@@ -1,6 +1,6 @@
 ## this is a simple script to validate a download url actaully exists
 
-if [ ! -z "${DOWNLOAD_URL}"]; then 
+if [ ! -z "${DOWNLOAD_URL}" ]; then 
     if curl --output /dev/null --silent --head --fail ${DOWNLOAD_URL}; then
         echo -e "link is valid. setting download link to ${DOWNLOAD_URL}"
         DOWNLOAD_LINK=${DOWNLOAD_URL}