Set convars in autoexec if the value starts with a dash

[cpdt]

Issue: Setting an extra argument to a value starting with a dash does not work, e.g.:

-e NS_EXTRA_ARGUMENTS="+slide_step_velocity_reduction -1000"

This ends up running the dedicated server like:

NorthstarLauncher.exe "+slide_step_velocity_reduction" "-1000"

The dedicated server is probably interpreting the -1000 as a command-line flag, so it's ignored when parsing the actual args.

Solution: This PR forces convars to be set in the generated autoexec file if the value starts with a dash, ensuring the value is parsed as a number and not a flag.

One possible alternative is wrapping values in an extra pair of quotes, i.e.:

NorthstarLauncher.exe "+slide_step_velocity_reduction" "\"-1000\""

However the launcher doesn't seem to be capable of parsing values likes this.

updates #10

[pg9182]

LGTM

[pg9182]

Thanks!

The config merging is getting messier since I didn't foresee these complications, so I'll probably rewrite it soon.