Update Jenkinsfile

Jenkinsfile

@@ -28,6 +28,9 @@ pipeline {
                       sh 'ls'
                       sh 'mv bin/* ../bin/.'
                     }
+                    // Build and test scripts expect that 'tag' is present in common.bash. This is necessary for both Jenkins and standalone testing.
+                    // We don't care if there are more 'tag' assignments there. The latest one wins.
+                    sh "echo >> common.bash ; echo \"tag=\\\"${tag}\\\"\" >> common.bash ; echo common.bash ; cat common.bash"
                 }  
              }
         }