Strip newlines from output.

Change-Id: I77ccc1905f36387cf14ca40a282353eecb3c26cd
diff --git a/cicd/pipelines/tasks/task_publish_unstable.jenkins b/cicd/pipelines/tasks/task_publish_unstable.jenkins
index 7d7ea6d..c8df8e6 100644
--- a/cicd/pipelines/tasks/task_publish_unstable.jenkins
+++ b/cicd/pipelines/tasks/task_publish_unstable.jenkins
@@ -7,7 +7,7 @@
             | head -n1
     """
 
-    return sh(returnStdout: true, script: script)
+    return sh(returnStdout: true, script: script).strip()
 }
 
 def installGpgKeyring() {
diff --git a/cicd/pipelines/tasks/task_update_unstable.jenkins b/cicd/pipelines/tasks/task_update_unstable.jenkins
index c954d4f..8ae2e23 100644
--- a/cicd/pipelines/tasks/task_update_unstable.jenkins
+++ b/cicd/pipelines/tasks/task_update_unstable.jenkins
@@ -7,7 +7,7 @@
             | head -n1
     """
 
-    return sh(returnStdout: true, script: script)
+    return sh(returnStdout: true, script: script).strip()
 }
 
 def installGpgKeyring() {