My RPi 3 is running 371 days w/o any restart. Here is the actual pushover message:

Raspi3: Uptime:  18:30:01 up 371 days, 23:34,  2 users,  load average: 0.43, 0.36, 0.30; Disk: Filesystem      Size  Used Avail Use% Mounted on

/dev/sda        288G  3.8G  270G   2% /mnt/data