DO NOT MERGE: Fix off-by-one error in res_cache.c

(cherry picked from commit 03844d8cdb43c351d2c94eb67242966019f7600d)

Change-Id: Ib5fff46ac9211716a1577ee25bb22461c489ea9f
diff --git a/libc/dns/include/resolv_stats.h b/libc/dns/include/resolv_stats.h
index 2aab958..aaf6bd8 100644
--- a/libc/dns/include/resolv_stats.h
+++ b/libc/dns/include/resolv_stats.h
@@ -67,7 +67,7 @@
 
 /* Returns an array of bools indicating which servers are considered good */
 extern void
-_res_stats_get_usable_servers(const struct __res_params* params, struct __res_stats stats[MAXNS],
-        int nscount, bool valid_servers[MAXNS]);
+_res_stats_get_usable_servers(const struct __res_params* params, struct __res_stats stats[],
+        int nscount, bool valid_servers[]);
 
 #endif  // _RES_STATS_H