[rpms/autoconf] rawhide: Enable lexical binding in `autoconf-init.el`

[rpms/autoconf] rawhide: Enable lexical binding in `autoconf-init.el`

[Peter Oliver]

            A new commit has been pushed.

            Repo   : rpms/autoconf
            Branch : rawhide
            Commit : 9c2c7e5c65f40b791c7bf120583fc12005f6fc96
            Author : Peter Oliver <git@mavit.org.uk>
            Date   : 2026-06-09T17:28:08+00:00
            Stats  : +2/-0 in 1 file(s)
            URL    : https://src.fedoraproject.org/rpms/autoconf/c/9c2c7e5c65f40b791c7bf120583fc12005f6fc96?branch=rawhide

            Log:
            Enable lexical binding in `autoconf-init.el`

This fixes the following unsightly warning in Emacs 31:

```
⛔ Warning (files): Missing ‘lexical-binding’ cookie in "/usr/share/emacs/site-lisp/site-start.d/autoconf-init.el".
You can add one with ‘M-x elisp-enable-lexical-binding RET’.
See ‘(elisp)Selecting Lisp Dialect’ and ‘(elisp)Converting to Lexical Binding’
for more information.
```

---
diff --git a/autoconf-init.el b/autoconf-init.el
index 1c5725d..747e0d1 100644
--- a/autoconf-init.el
+++ b/autoconf-init.el
@@ -1,3 +1,5 @@
+;;; autoconf-init.el --- Autoload autotest-mode  -*- lexical-binding: t; -*-
+
 ;; Activate autoconf-mode
 
 ;; Uncomment the following code if you feel that autoconf-mode.el does better