fix leaking virusnames in hm_free

ChangeLog

@@ -1,3 +1,7 @@
+Thu Feb  3 16:40:24 CET 2011 (acab)
+-----------------------------------
+ * libclamav/matcher-hash.c: stop leaking virusnames (nopool mode)
+
 Mon Jan 31 16:53:39 CET 2011 (tk)
 ---------------------------------
  * V 0.97rc

libclamav/matcher-hash.c

@@ -256,6 +256,8 @@ void hm_free(struct cli_matcher *root) {
 	    unsigned int keylen = hashlen[type];
 
 	    mpool_free(root->mempool, szh->hash_array);
+	    while(szh->items)
+		mpool_free(root->mempool, szh->virusnames[--szh->items]);
 	    mpool_free(root->mempool, szh->virusnames);
 	    mpool_free(root->mempool, szh);
 	}