zdtm: skip linux-vdso64.so when a new root is contructed

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/zdtm.sh

@@ -473,6 +473,7 @@ construct_root()
 	local libs=$(ldd $test_path $ps_path | awk '
 		!/^[ \t]/ { next }
 		/linux-vdso\.so/ { next }
+		/linux-vdso64\.so/ { next }
 		/linux-gate\.so/ { next }
 		/not a dynamic executable$/ { next }
 		$2 ~ /^=>$/ { print $3; next }