Fix a merge error in the parent commit

Fix an inadvertently inverted condition that caused
galera.galera_sst_mariabackup_table_options test failure.

extra/mariabackup/fil_cur.cc

@@ -343,7 +343,7 @@ static bool page_is_corrupted(const byte *page, ulint page_no,
 		bool decrypted = false;
 		if (!space->crypt_data
 		    || space->crypt_data->type == CRYPT_SCHEME_UNENCRYPTED
-		    || fil_space_decrypt(space, tmp_frame, tmp_page,
+		    || !fil_space_decrypt(space, tmp_frame, tmp_page,
 					  &decrypted)) {
 			return true;
 		}