linux /boot/vmlinuz-3.2.0-41-generic root=UUID=617f285e-1aaf-4c22-813c-f6da41adf309 ro resume=/dev/sda5 equiet splash $vt_handoff

Open up /etc/default/grub with root privledges and add GRUB_CMDLINE_LINUX="resume=/dev/sdXY" Where XY is the swap partition location, which can be found by sudo fdisk -l. It looks like you are using UUID instead and that's fine. /etc/default/grub only affects the current operating system so don't worry about every linux OS using grub to start using that swap. After finishing your edits, run sudo grub-mkconfig -o /boot/grub/grub.cfg (substitute grub.cfg with whatever file grub reads at boot, e.g. it may be named /boot/grub/grub.efi) to update your grub startup information with what you changed in /etc/default/grub