gio-launch-desktop: Only replace fds that point to the Journal
If stdout is the Journal but stderr is not, then we probably only want to redirect stdout, or vice versa.
Follow-up for !2819 (merged) (sorry, I thought I'd already pushed this).
If stdout is the Journal but stderr is not, then we probably only want to redirect stdout, or vice versa.
Follow-up for !2819 (merged) (sorry, I thought I'd already pushed this).