[ostree] installer: Fix typo

[Colin Walters <walters src gnome org>]

commit 78bc1bbb20839462c9fe58f28f6bbc40a26480f7
Author: Colin Walters <walters verbum org>
Date:   Wed Feb 8 20:22:04 2012 -0500

    installer: Fix typo

 gnomeos/yocto/gnomeos-install.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gnomeos/yocto/gnomeos-install.sh b/gnomeos/yocto/gnomeos-install.sh
index b9621f6..4d4c4e4 100755
--- a/gnomeos/yocto/gnomeos-install.sh
+++ b/gnomeos/yocto/gnomeos-install.sh
@@ -102,4 +102,4 @@ linux-user-chroot \
     /ostree/${BRANCH_PREFIX}devel-current \
     dracut -f /tmp/${initrd_name} "${uname}"
 mv "${initrd_tmpdir}/${initrd_name}" "/boot/${initrd_name}"
-rm -rf $"{initrd_tmpdir}"
+rm -rf "${initrd_tmpdir}"