From 8104596ed7e389d37e6cf74e8f4ab05b647d0add Mon Sep 17 00:00:00 2001
From: Alexander Moibenko <anm12345@gmail.com>
Date: Mon, 5 Feb 2024 13:54:16 +0300
Subject: [PATCH] One more fix to copy_char_buffer to make trailing character
 correct.

---
 mtx-1.3.12/mtxl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mtx-1.3.12/mtxl.c b/mtx-1.3.12/mtxl.c
index 57bbcbb..1e46951 100644
--- a/mtx-1.3.12/mtxl.c
+++ b/mtx-1.3.12/mtxl.c
@@ -631,7 +631,7 @@ void copy_char_buffer(unsigned char *src, unsigned char *dest, int num)
 
   for (i=0; i < num; i++)
  {
-   if (isalnum(*src)) {
+   if (isxdigit(*src)) {
        *dest++ = *src;
    }
    src++;