totally destroy test caches

someone pointed out that cache_destroy wasn't freeing the cache_t pointer.

memcached itself never destroys a cache it creates, so this is fine, but it's
fixed for completeness...

1 files changed, 1 insertions, 0 deletions

diff --git a/cache.c b/cache.c
index e095962..07a2ae0 100644
--- a/cache.c
+++ b/cache.c
@@ -65,6 +65,7 @@ void cache_destroy(cache_t *cache) {
     free(cache->name);
     free(cache->ptr);
     pthread_mutex_destroy(&cache->mutex);
+    free(cache);
 }
 
 void* cache_alloc(cache_t *cache) {