dbus: Fix dbus.SystemBus* signatures

[trapperhoney]

The signatures for these function recently change to include an optional
options structure in
godbus/dbus@0c07171

Update references appropriately.

[lucab]

@trapperhoney see #293 (comment).

[trapperhoney]

Thanks, I guess that explains why the build checks failed... However, this breaks all of the packages that depend on this one (which is how I ended up here) since the dbus code is not included in a vendor directory of this project... Maybe I'm missing some feature of 'go get' that is capable of parsing .toml files?

[lucab]

@trapperhoney you are not missing that. However, you should instead pin and vendor dependencies in whatever application is consuming this. There are a few dependency managers to do that so you can pick the one you prefer. The TOML manifest here is in the dep format.

[lucab]

duplicate of #296

go-dbus 5.0 got released, and the above PR fixed this same issue. Closing.

[purpleidea]

@trapperhoney , sorry to re-write this patch. I didn't realize there was a dupe until I had sent mine. All merged now anyways. Woo!

[trapperhoney]

Thank you both! Mine wasn't the first patch either ;)