From b1e3caebba5dd31ad1f9deb021eb24e6b8f8b851 Mon Sep 17 00:00:00 2001
From: elkman <elkman@users.noreply.github.com>
Date: Mon, 15 Jan 2024 18:18:29 +0100
Subject: [PATCH] fix non-POSIX usage of expr in kc.sh (#26166)

replaces \+ by \{1,\} in regular expression for better POSIX compatibility

Signed-off-by: elkman <elkman@users.noreply.github.com>
---
 quarkus/dist/src/main/content/bin/kc.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/quarkus/dist/src/main/content/bin/kc.sh b/quarkus/dist/src/main/content/bin/kc.sh
index f54e542855..b12a0c3c21 100644
--- a/quarkus/dist/src/main/content/bin/kc.sh
+++ b/quarkus/dist/src/main/content/bin/kc.sh
@@ -54,7 +54,7 @@ do
     case "$1" in
       --debug)
           DEBUG_MODE=true
-          if [ -n "$2" ] && expr "$2" : '[0-9]\+$' >/dev/null; then
+          if [ -n "$2" ] && expr "$2" : '[0-9]\{0,\}$' >/dev/null; then
               DEBUG_PORT=$2
               shift
           fi