zdtm: Need increase buffer in msgque.c to avoid overflow

Need increase buffer in msgque.c to avoid overflow via memcpy,
because now mtext[20] less than ANOTHER_TEST_STRING "Yet another test sysv5 msg".
Signed-off-by: Victor Konyashkin <vkonyashkin@parallels.com>
Acked-by: Andrey Vagin <avagin@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/zdtm/live/static/msgque.c

@@ -20,7 +20,7 @@ const char *test_author="Stanislav Kinsbursky <skinsbursky@openvz.org>";
 
 struct msg1 {
 	long mtype;
-	char mtext[20];
+	char mtext[30];
 };
 #define TEST_STRING "Test sysv5 msg"
 #define MSG_TYPE 1