defaulting _complete to the shell of the parent process

[EitanSchuler]

I have no idea if this is something you want, but it was a low-hanging fruit.

[perlpunk]

Thanks! merged and added an extra check of the ps output

[perlpunk]

Just a recommendation, because I also made this mistake for my first pull request(s), and I see also other people doing this: Always create a topic branch for pull requests, because:

• Creating a branch for everything and never work directly on master is a good habit and avoids rebasing
• If you create a pull request, any following commit you make will be automatically added to the pull request. This might not be wanted for master
• If you create a pull request in master, and then want to make another unrelated pull request, you can't do that in master
• If the recipient of the pull request does some other changes in between, you have to rebase your master. If on a branch, you can simply delete that branch after the PR is merged

[EitanSchuler]

Thanks, perlpunk, will do so in the future.

[perlpunk]

I found a bug: ps might return, for example: -zsh, /bin/bash, ...