turn DEBUG off for Jenkinsfile by default

Jenkinsfile

@@ -14,7 +14,7 @@ def withDockerCreds(body) {
 pipeline {
     agent none
     environment {
-        DEBUG = "1"
+        DEBUG = "0"
         HEADLESS = "1"
     }
     options { buildDiscarder logRotator(numToKeepStr: '4') }

main.sh

@@ -78,7 +78,7 @@ export REPO_DIR="$(cd "$(dirname "${thisFile}")/.." && echo "$PWD")"
 source "${REPO_DIR}/main.sh" || exit 1
 scr_name="$(bash_basename $0)"
 cmd="${scr_name//.sh/}"
-if [[ $DEBUG == 1 ]]; then set -x; fi
+[[ ${DEBUG} == 1 ]] && set -x
 $cmd "$@"' >"${ENTRY_SCRIPT}"
         chmod +x "${ENTRY_SCRIPT}"
         for funcName in "${FB_FUNC_NAMES[@]}"; do