Removed extra quote from upgrade script

Author: cmstew

install/upgrade/versions/1.4.0.sh

@@ -38,7 +38,7 @@ if [ "$MAIL_SYSTEM" == "exim4" ]; then
         echo "[ * ] Updating exim4 configuration..."
 
         # Add new smtp_active_hostname variable to exim config
-        sed -i '/^smtp_banner = \$smtp_active_hostname$/a smtp_active_hostname = ${if exists {\/etc\/exim4\/mailhelo.conf}{${lookup{$interface_address}lsearch{\/etc\/exim4\/mailhelo.conf}{$value}{$primary_hostname}}}{$primary_hostname}}"' /etc/exim4/exim4.conf.template
+        sed -i '/^smtp_banner = \$smtp_active_hostname$/a smtp_active_hostname = ${if exists {\/etc\/exim4\/mailhelo.conf}{${lookup{$interface_address}lsearch{\/etc\/exim4\/mailhelo.conf}{$value}{$primary_hostname}}}{$primary_hostname}}' /etc/exim4/exim4.conf.template
 
         # Lookup HELO address by sending ip instead of sending domain
         sed -i 's/helo_data = \${if exists {\/etc\/exim4\/mailhelo.conf}{${lookup{\$sender_address_domain}lsearch\*{\/etc\/exim4\/mailhelo.conf}{\$value}{\$primary_hostname}}}{\$primary_hostname}}/helo_data = ${if exists {\/etc\/exim4\/mailhelo.conf}{${lookup{$sending_ip_address}lsearch{\/etc\/exim4\/mailhelo.conf}{$value}{$primary_hostname}}}{$primary_hostname}}/' /etc/exim4/exim4.conf.template