style

tests/check-ssh.sh

         fi
         ;;
     installed)
-	OPENSSH_SERVER=`dpkg -s openssh-server | grep -i "Status:.*install.*ok.*installed" | wc -l`
-	OPENSSH_CLIENT=`dpkg -s openssh-client | grep -i "Status:.*install.*ok.*installed" | wc -l`
-	if [ ${OPENSSH_SERVER} -eq 1 -a ${OPENSSH_CLIENT} -eq 1 ];then
+	OPENSSH_SERVER=$(dpkg -s openssh-server | grep -i "Status:.*install.*ok.*installed" | wc -l)
+	OPENSSH_CLIENT=$(dpkg -s openssh-client | grep -i "Status:.*install.*ok.*installed" | wc -l)
+	if [ ${OPENSSH_SERVER} -eq 1 -a ${OPENSSH_CLIENT} -eq 1 ]; then
 	    :
 	else
 	    exit 1