parse() is not awaited in V5

[justinwilaby]

In @oclif/core, the parse function is async since v2 or so but plugins-legacy does not await on this function resulting in destructuring a Promise instead of an object.

 class V5 extends Command {
            async run() {
                const color = require('@oclif/color').default;
                const { args, argv, flags } = this.parse(this.constructor);  // <-------------- this should be awaited
// ... rest of the class

This results in undefined values for args, argv, flags which throws after entering the command's run function.

The fix is const { args, argv, flags } = await this.parse(this.constructor);

[git2gus]

Git2Gus App is installed but the .git2gus/config.json doesn't exist.