[rear-devel] [rear/rear] 1e7aea: Update 300_create_grub.sh

[Johannes Meixner]

  Branch: refs/heads/jsmeix-improve-GRUB2-USB
  Home:   https://github.com/rear/rear
  Commit: 1e7aeab7c32019fd365b43469db54205e19310eb
      https://github.com/rear/rear/commit/1e7aeab7c32019fd365b43469db54205e19310eb
  Author: Johannes Meixner <jsmeix at suse.com>
  Date:   2021-07-26 (Mon, 26 Jul 2021)

  Changed paths:
    M usr/share/rear/output/USB/Linux-i386/300_create_grub.sh

  Log Message:
  -----------
  Update 300_create_grub.sh

grub[2]-install creates the $BUILD_DIR/outputfs/boot/grub[2] sub-directory that is needed
to create the GRUB2 config $BUILD_DIR/outputfs/boot/grub[2].cfg in the next step