Generating grub.cfg ...
Found background: /usr/share/void-artwork/splash.png

seen this during initual fresh install update. Is it something to worry 
about?

this is the output during grub  update where I seen it

Found linux image: /boot/vmlinuz-4.1.4_1
Found initrd image: /boot/initramfs-4.1.4_1.img
Found linux image: /boot/vmlinuz-4.1.2_1
Found initrd image: /boot/initramfs-4.1.2_1.img



File descriptor 3 (socket:[42915]) leaked on lvs invocation. Parent PID 
12736: /bin/sh



  WARNING: lvmetad is running but disabled. Restart lvmetad before enabling 
it!
Found Slackware Linux (Slackware 14.1) on /dev/sda2
Found Void Linux 64 on /dev/sda8
done
linux4.1-4.1.4_1: updated successfully.