Update test results

In the upstream include/search_pattern_in_file.inc prints nothing
when it has found the searched string (if it hasn't, it produces an error)

In MariaDB, it prints "FOUND n ..."

storage/rocksdb/mysql-test/rocksdb/r/max_open_files.result

 CALL mtr.add_suppression("RocksDB: rocksdb_max_open_files should not be greater than the open_files_limit*");
+FOUND 1 /RocksDB: rocksdb_max_open_files should not be greater than the open_files_limit/ in rocksdb.max_open_files.err
 SELECT FLOOR(@@global.open_files_limit / 2) = @@global.rocksdb_max_open_files;
 FLOOR(@@global.open_files_limit / 2) = @@global.rocksdb_max_open_files
 1