From 67888380bc4098e0bc01ee266145c2b93e9cd91b Mon Sep 17 00:00:00 2001
From: Stuart Cardall <developer@it-offshore.co.uk>
Date: Tue, 17 Apr 2018 21:26:04 +0000
Subject: [PATCH] fix grep regex range error

* fixes grep: Invalid range end ERROR

* https://github.com/mitchellkrogza/nginx-ultimate-bad-bot-blocker/issues/86#issuecomment-381918868
---
 update-ngxblocker | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/update-ngxblocker b/update-ngxblocker
index 28c9bd803..424b355d6 100755
--- a/update-ngxblocker
+++ b/update-ngxblocker
@@ -188,7 +188,7 @@ check_args() {
 				exit 1
 			fi
 			;;
-	       email)   if ! echo $arg | grep -E ^[+-_\.[:alnum:]]+@[-_\.[:alnum:]]+ 1>/dev/null; then
+	       email)   if ! echo $arg | grep -E ^[-+_\.[:alnum:]]+@[-_\.[:alnum:]]+ 1>/dev/null; then
 				printf "$msg email@domain.com\n"
 				exit 1
 			fi