fixup

Author: mattiaswal

utils/kernel-upgrade.sh

@@ -267,7 +267,8 @@ update_changelog() {
         awk -v new_line="- Upgrade Linux kernel to $NEW_VERSION (LTS)" '
             /^### Changes/ && !done {
                 print
-                print ""
+                getline
+                if (NF == 0) print
                 print new_line
                 done=1
                 next