Error:

----------
          ID: block replace for grub to set boot options
    Function: augeas.change
      Result: False
     Comment: Error: Unable to save to file!
     Started: 14:17:06.609273
    Duration: 19.03 ms
     Changes:   

grub

# If you change this file, run 'grub2-mkconfig -o /boot/grub2/grub.cfg' afterwards to update
# /boot/grub2/grub.cfg.

# Uncomment to set your own custom distributor. If you leave it unset or empty, the default
# policy is to determine the value from /etc/os-release
GRUB_DISTRIBUTOR=
GRUB_DEFAULT=saved
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=8
GRUB_CMDLINE_LINUX_DEFAULT="resume=/dev/vg_system/lv_swap splash=silent quiet showopts"
GRUB_CMDLINE_LINUX=""

# Uncomment to automatically save last booted menu entry in GRUB2 environment

# variable `saved_entry'
# GRUB_SAVEDEFAULT="true"
#Uncomment to enable BadRAM filtering, modify to suit your needs

# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
# GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
#Uncomment to disable graphical terminal (grub-pc only)

GRUB_TERMINAL="gfxterm"
# The resolution used on graphical terminal
#note that you can use only modes which your graphic card supports via VBE

# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE="auto"
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
# GRUB_DISABLE_LINUX_UUID=true
#Uncomment to disable generation of recovery mode menu entries

# GRUB_DISABLE_LINUX_RECOVERY="true"
#Uncomment to get a beep at grub start

# GRUB_INIT_TUNE="480 440 1"
GRUB_BACKGROUND=/boot/grub2/themes/SLE/background.png
GRUB_THEME=/boot/grub2/themes/SLE/theme.txt
SUSE_BTRFS_SNAPSHOT_BOOTING="true"
GRUB_DISABLE_OS_PROBER="true"
GRUB_ENABLE_CRYPTODISK="n"

SLS

block replace for grub to set boot options:
 augeas.change:
  - lens: grub.lns
  - context: /files/etc/default/grub
  - changes:
    - set GRUB_CMDLINE_LINUX_DEFAULT "resume=/dev/vg_system/lv_swap splash=silent quiet showopts transparent_hugepage=never"