zdtm: Change oom_score_adj score value

... so it can be used from non-root:
(Higher value means it would be killed earlier so everyone should be
possible to change his value to bigger than zero)
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/zdtm/live/static/oom_score_adj.c

@@ -13,7 +13,7 @@ const char *test_doc = "Check for /proc/self/oom_score_adj restore";
 const char *test_author = "Dmitry Safonov <dsafonov@odin.com>";
 
 const char oom_score_adj_self[] = "/proc/self/oom_score_adj";
-const int test_value = -400;
+const int test_value = 400;
 
 int get_oom_score_adj(const char *path, int *err)
 {