git: 75f7d9cbff26 - stable/14 - m4: Fix OOB access displaying MIN_INT

The branch stable/14 has been updated by emaste:

URL: https://cgit.FreeBSD.org/src/commit/?id=75f7d9cbff26264640fcfcd2e3c5c4ca1d0ea0a6

commit 75f7d9cbff26264640fcfcd2e3c5c4ca1d0ea0a6
Author:     Eric Blake <eblake@redhat.com>
AuthorDate: 2025-05-24 17:21:38 +0000
Commit:     Ed Maste <emaste@FreeBSD.org>
CommitDate: 2025-05-30 12:45:56 +0000

    m4: Fix OOB access displaying MIN_INT
    
    Previously displaying INT_MIN resulted in an out of bounds access to
    digits[-8].  In twos-complement -INT_MIN is still negative.
    
    PR:             287013
    Reviewed by:    emaste
    
    (cherry picked from commit ab4edcd552c967a400e85afc0fd3e6729fa9ee2c)
---
 usr.bin/m4/misc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.bin/m4/misc.c b/usr.bin/m4/misc.c
index 4533e106a37f..73ced384466c 100644
--- a/usr.bin/m4/misc.c
+++ b/usr.bin/m4/misc.c
@@ -122,7 +122,7 @@ void
 pbnumbase(int n, int base, int d)
 {
 	static char digits[36] = "0123456789abcdefghijklmnopqrstuvwxyz";
-	int num;
+	unsigned int num;
 	int printed = 0;
 
 	if (base > 36)