[makeversion] Fix location of release web page.

(cherry picked from commit 4a06e1b1c0d3da7f604f277c7dd27ed25ed8f8f1)

build/unix/makeversion.sh

@@ -27,5 +27,5 @@ git commit core/base/inc/RVersion.h rootx/src/rootcoreteam.h build/version_numbe
 echo "Update also doc/vXXX/index.html to $VERSION."
 echo ""
 echo "New version is $VERSION."
-echo "See http://root.cern.ch/drupal/howtorelease for the next steps,"
+echo "See https://root.cern/release-checklist for the next steps,"
 echo "for instance tagging if this is a release."