Recommended update for grub2
This recommended update for grub2 fixes the following issues:
- Fix wrong escape sequence in previous commit (boo#955115)
* modified grub2-snapper-plugin.sh
- Fix snapshot booting on s390x (boo#955115)
* modified grub2-snapper-plugin.sh
- Submitted by Marcus Meissner (msmeissn)
Fixed bugs
bnc#955115
[s390x] cannot boot into snapshot after online migration to sles12sp1