meta-fii: meta-kudo: Fix shellcheck errors

Fixes bash shellcheck errors so that the exemptions in run-repotest
can be removed.

Signed-off-by: Charles Boyer <Charles.Boyer@fii-usa.com>
Change-Id: I6afb059cf1151c871ddfcaf67efc6a63183f7130
diff --git a/meta-fii/meta-kudo/recipes-kudo/kudo-sys-utility/kudo-cmd/kudo-ras.sh b/meta-fii/meta-kudo/recipes-kudo/kudo-sys-utility/kudo-cmd/kudo-ras.sh
index af1b0a4..551192d 100644
--- a/meta-fii/meta-kudo/recipes-kudo/kudo-sys-utility/kudo-cmd/kudo-ras.sh
+++ b/meta-fii/meta-kudo/recipes-kudo/kudo-sys-utility/kudo-cmd/kudo-ras.sh
@@ -241,7 +241,7 @@
 
 
 
-if [ -z $powerState ]
+if [ -z "${powerState}" ]
  then
         echo "System is currently Powered off S6"
 else