Add --insert-after param to the note generation script

I thought this would allow insertion with ld.gold, but it turns out
that the resulting binary has something wrong with sections. So only the
change to the script is committed, because it makes it much easier to
experiment with various linkers.

generate-rpm-note.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
 readonly=1
+insert_after=1
 
 pad_string() {
     for _ in $(seq "$1"); do
@@ -44,7 +45,8 @@ write_script() {
     write_string "$1" '        ' 'Value' "$value_len"
 
     printf '    }\n}\n'
-    printf 'INSERT AFTER .note.gnu.build-id;\n'
+    [ -n "$insert_after" ] && printf 'INSERT AFTER .note.gnu.build-id;\n'
+    :
 }
 
 if [ "$1" == "--readonly=no" ]; then
@@ -52,6 +54,11 @@ if [ "$1" == "--readonly=no" ]; then
     readonly=
 fi
 
+if [ "$1" == "--insert-after=no" ]; then
+    shift
+    insert_after=
+fi
+
 cpe="$(cat /usr/lib/system-release-cpe)"
 json="$(printf '{"type":"rpm","name":"%s","version":"%s","architecture":"%s","osCpe":"%s"}' "$1" "$2" "$3" "$cpe")"
 write_script "$json"