Error icon on successful git push

[helgelol]

I mean, it works, it just might be misleading for when you get an actual error.

[helgelol]

Same happens in the standard theme.

(The picture looks the same, but I've actually changes themes.)

[trueinvestment]

Themes stays original of Masters copy right?

[qykong]

I had this issue as well. I noticed in exec.ts, the error was handled by checking stderr, but according to this, it's better to check the exit status instead. There should be an easy fix to this and I can contribute if the @ivangabriele is open to pull request? 😃