Bug 1698572 - Shorten BackgroundAppUpdate description. r=flod,fluent-reviewers

Differential Revision: https://phabricator.services.mozilla.com/D108843

browser/components/enterprisepolicies/content/aboutPolicies.js

@@ -291,6 +291,7 @@ function generateDocumentation() {
     Certificates: "CertificatesDescription",
     SanitizeOnShutdown: "SanitizeOnShutdown2",
     Permissions: "Permissions2",
+    BackgroundAppUpdate: "BackgroundAppUpdate2",
   };
 
   for (let policyName in schema.properties) {

browser/locales/en-US/browser/policies/policies-descriptions.ftl

@@ -17,7 +17,7 @@ policy-AppUpdateURL = Set custom app update URL.
 
 policy-Authentication = Configure integrated authentication for websites that support it.
 
-policy-BackgroundAppUpdate = Enable or disable the background updater, which updates the browser when it is not running.
+policy-BackgroundAppUpdate2 = Enable or disable the background updater.
 
 policy-BlockAboutAddons = Block access to the Add-ons Manager (about:addons).