更新 'Jenkinsfile'

Jenkinsfile

@@ -10,7 +10,7 @@ pipeline {
         stage('Build') {
             steps {
                 echo env.BRANCH_NAME
-                echo ${env.BRANCH_NAME,,}
+                echo ${env.BRANCH_NAME}.toLowerCase()
                 echo 'Building..'
                 sh 'docker-compose down'
                 sh '~/tools/apache-maven-3.6.3/bin/mvn  clean install -Dmaven.test.skip=true'