lxc-centos: protect possibly unset variable with quotes for -z check

Signed-off-by: Michael Adam <obnox@samba.org> Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

lxc-centos: protect possibly unset variable with quotes for -z check
2575832f · Michael Adam · Stéphane Graber · f2e0cfa9 · 2575832f
Commit 2575832f authored Jan 08, 2015 by Michael Adam Committed by Stéphane Graber Jan 30, 2015
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lxc-centos.in templates/lxc-centos.in +1 -1

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--- a/templates/lxc-centos.in
+++ b/templates/lxc-centos.in
@@ -881,7 +881,7 @@ fi
 configure_centos_init
-if [ ! -z $clean ]; then
+if [ ! -z "$clean" ]; then
    clean || exit 1
    exit 0
 fi