google_analytics_async.html: Add deprecation warning

diff --git a/tpl/tplimpl/embedded/templates/google_analytics_async.html b/tpl/tplimpl/embedded/templates/google_analytics_async.html
index 499cb6fe377c0e2166133c6c723704cf303361bf..b7bf36faa9d4977b2e0cdcf5145cb810107482c7 100644 (file)
--- a/tpl/tplimpl/embedded/templates/google_analytics_async.html
+++ b/tpl/tplimpl/embedded/templates/google_analytics_async.html
@@ -1,3 +1,4 @@
+{{ warnf "_internal/google_analytics_async.html is no longer supported by Google and will be removed in a future version of Hugo" }}
 {{- $pc := .Site.Config.Privacy.GoogleAnalytics -}}
 {{- if not $pc.Disable -}}
 {{ with .Site.GoogleAnalytics }}