I am running SLES12 Enterprise and the command grub2-script-check hangs with out any output.
grub2-script-check -v

Also the documentation specifies the command grub2-check-config which results in error of command not found.

grub2-script-check
Checks the given file for syntax errors.
EXAMPLE 12.3: USAGE OF GRUB2-SCRIPT-CHECK
grub2-check-config /boot/grub2/grub.cfg