Fix some variable initializationg warnings in older GCC

src/interface.c

@@ -14206,10 +14206,14 @@ void seven_zip_hook_func (hc_device_param_t *device_param, hashes_t *hashes, con
 
     // init AES
 
-    AES_KEY aes_key = { 0 };
+    AES_KEY aes_key;
+
+    memset (&aes_key, 0, sizeof (aes_key));
+
     AES_set_decrypt_key (ukey, 256, &aes_key);
 
     AES_KEY aes_key_copied;
+
     memcpy (&aes_key_copied, &aes_key, sizeof (AES_KEY));
 
     if (padding_check_fast == true) // use part of the data as initialization vector

src/user_options.c

@@ -1565,8 +1565,11 @@ int user_options_check_files (hashcat_ctx_t *hashcat_ctx)
 
     char *outfile = outfile_ctx->filename;
 
-    hc_stat_t tmpstat_outfile  = { 0 };
-    hc_stat_t tmpstat_hashfile = { 0 };
+    hc_stat_t tmpstat_outfile;
+    hc_stat_t tmpstat_hashfile;
+
+    memset (&tmpstat_outfile,  0, sizeof (tmpstat_outfile));
+    memset (&tmpstat_hashfile, 0, sizeof (tmpstat_hashfile));
 
     int do_check = 0;