[PATCH] Fix config.sub spelling typo for "athlon"

[Paul Eggert]

This typo was introduced in commit
fc14426403b6106981d2b3a4666835df29203043
dated Tue Aug 28 09:59:08 2018 +1000.
---
 config.sub | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/config.sub b/config.sub
index d6731d6..de4259e 100755
--- a/config.sub
+++ b/config.sub
@@ -4,7 +4,7 @@
 
 # shellcheck disable=SC2006,SC2268 # see below for rationale
 
-timestamp='2023-01-01'
+timestamp='2023-01-21'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -1075,7 +1075,7 @@ case $cpu-$vendor in
        pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
                cpu=i586
                ;;
-       pentiumpro-* | p6-* | 6x86-* | athlon-* | athalon_*-*)
+       pentiumpro-* | p6-* | 6x86-* | athlon-* | athlon_*-*)
                cpu=i686
                ;;
        pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
-- 
2.39.0