Make SHELL_JAIL_ENABLED optional

By Default shell_jail_enabled was set to no anyway

Author: jaapmarcus

bin/v-change-user-shell

@@ -27,7 +27,7 @@ source $HESTIA/conf/hestia.conf
 #                    Verifications                         #
 #----------------------------------------------------------#
 
-check_args '3' "$#" 'USER SHELL SHELL_JAIL_ENABLED'
+check_args '2' "$#" 'USER SHELL SHELL_JAIL_ENABLED'
 is_format_valid 'user' 'shell shell_jail_enabled'
 is_object_valid 'user' 'USER' "$user"
 is_object_unsuspended 'user' 'USER' "$user"