From 2189b627de9fc79dd8ce1e3a4d186eab7ae9e238 Mon Sep 17 00:00:00 2001
From: Jonathan Brownell <brownell@hp.com>
Date: Thu, 27 Feb 2014 13:53:07 -0800
Subject: [PATCH] Fix syntax error in GRUB_OPTS env var handling

Reference to ${GRUB_OPTS:""} in 'vm' element causes syntax error
if GRUB_OPTS is set. Fix by changing to ${GRUB_OPTS:-""}.

Change-Id: Iae3ee8b7c4064c92d0cfc1b5a8caa22e53d6d112
---
 elements/vm/finalise.d/51-bootloader | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/elements/vm/finalise.d/51-bootloader b/elements/vm/finalise.d/51-bootloader
index 9cd6fadf3..115fb50ed 100755
--- a/elements/vm/finalise.d/51-bootloader
+++ b/elements/vm/finalise.d/51-bootloader
@@ -79,7 +79,7 @@ function install_grub2 {
 
     echo "Installing GRUB2..."
 
-    GRUB_OPTS=${GRUB_OPTS:""}
+    GRUB_OPTS=${GRUB_OPTS:-""}
     # XXX: This is buggy:
     # - --target=i386-pc is invalid for non-i386/amd64 architectures
     # - and for UEFI too.