reset_terminal_fd sets certain minimum required terminal attributes that systemd relies on. One of those attributes is `ONLCR` which ensures that when a new line is sent to the terminal, that the cursor not only moves to the next line, but also moves to the very beginning of that line. In order for `ONLCR` to work, the terminal needs to perform output post-processing. That requires an additional attribute, `OPOST`, which reset_terminal_fd currently fails to ensure is set. In most cases `OPOST` (and `ONLCR` actually) are both set anyway, so it's not an issue, but it could be a problem if, e.g., the terminal was put in raw mode by a program and the program unexpectedly died before restoring settings. This commit ensures when `ONLCR` is set `OPOST` is set too, which is the only thing that really makes sense to do.
System and Service Manager
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