I'm doing HipChat notifications in a Pipeline build (via Jenkinsfile) and even at job conclusion – as the very last step in a Jenkinsfile script – the DURATION template's value contains the string "and counting", e.g., "36 sec and counting". I can see this being appropriate while the job is in progress but it's awkward when it's done.

The default templates sent by the HipChat plugin in a non-pipeline (e.g., freestyle) scenario show job success messages like "Build successful after 36 sec".

An example of my usage:

hipchatSend (
    color: 'GREEN',
    credentialId: 'HipChatToken', 
    message: 'Done in ${DURATION}', 
    room: '12456', 
    server: 'hipchat.company.com', 
    v2enabled: true)

This generates a message like this:

Given that this is a notification-time template evaluation, I don't have the option of find-replace on "and counting" before the notification is sent. How can I get the HipChat plugin to supply a duration value that is just the duration, e.g., "36 sec"? In other words, how does it know (or how can I tell it) that the job is actually done, so that this awkward-sounding working is not added?