--restore requires positional arguments in practice, despite docs/help

[Francesco-Sch]

Hey Rama,

thanks for providing this cool wallpaper manager for Wayland, which works nicely with your sysc-greet. Today I setup both libraries for my Sway Wayland setup.

I tried to setup gSlapper as a systemd service with the --restore flag. Thereby I investigated the following behavior. I have built it from source from the 1.4.0 tag.

Observed behavior

• Running gslapper --restore fails/inconsistently initializes, while docs imply restore should be usable without providing output/file.
• gslapper --help output from the installed binary also did not reliably list --restore even though source and docs reference it.

What was expected

• --restore should restore from prior state and not require explicit output and file arguments.

If I can be of any further help let me know. Thx. ✌️