[OE-core] [PATCH] mkefidisk.sh; correct quoting

[Troy D. Hanson]

mkefidisk.sh writes embedded control characters into startup.nsh.
Causes bootup to fail, dropping user into EFI shell.  Encountered while
following the the Yocto Quick Start example with the Minnowboard Max.

[YOCTO #9665]

Signed-off-by: Troy D. Hanson <tdh at tkhanson.net>
---
 scripts/contrib/mkefidisk.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/contrib/mkefidisk.sh b/scripts/contrib/mkefidisk.sh
index 333284f..a7b17d9 100755
--- a/scripts/contrib/mkefidisk.sh
+++ b/scripts/contrib/mkefidisk.sh
@@ -439,7 +439,7 @@ if [ -d $ROOTFS_MNT/etc/udev/ ] ; then
 fi
 
 # Add startup.nsh script for automated boot
-echo "fs0:\EFI\BOOT\bootx64.efi" > $BOOTFS_MNT/startup.nsh
+echo 'fs0:\\EFI\\BOOT\\bootx64.efi' > $BOOTFS_MNT/startup.nsh
 
 
 # Call cleanup to unmount devices and images and remove the TMPDIR
-- 
2.7.4