fix 32 bit.

Author: VadimZhestikov

src/njs_flathsh.h

@@ -26,7 +26,8 @@ typedef struct {
     uint32_t     configurable:1;
 
     uint32_t     key_hash;
-    void *value[2];
+
+    void         *value[16/sizeof(void *)]; 
 } njs_flathsh_elt_t;