Commands don't run if the current directory's full path contains a space

[sabslikesobs]

> bin/rails litestream:databases
2025/08/25 17:40:52 ERROR failed to run error="too many arguments"

All litestream: commands fail mysteriously if the user's current working directory contains a space somewhere in it.

This line is to blame: https://github.com/fractaledmind/litestream-ruby/blob/main/lib/litestream/commands.rb#L165

stdout = `#{cmd.join(" ")}`.chomp

The line doesn't escape any command arguments, and somewhere else it expands the working directory into a full path, so a directory like /home/my work/repo will count as home/my and work/repo.