fix mysqlconn

scripts/install

@@ -143,7 +143,7 @@ ynh_app_setting_set "$app" db_name "$db_name"
 ynh_app_setting_set "$app" db_user "$db_user"
 ynh_mysql_setup_db "$db_user" "$db_name"
 
-export mysqlconn="mysql -u $db_user -p $db_pwd $db_name"
+export mysqlconn="mysql -u$db_user -p$db_pwd $db_name"
 
 zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | $mysqlconn