Add a more reasonable default so default instance can run NEO tests.

software/neoppod/my.cnf.in

@@ -23,6 +23,8 @@ max_allowed_packet = 128M
 query_cache_size = 32M
 innodb_locks_unsafe_for_binlog = 1
 
+innodb_log_file_size = 100663296
+
 # Some dangerous settings you may want to uncomment temporarily
 # if you only want performance or less disk access.
 {% set x = '' if extra_dict.pop('relaxed-writes', False) else '#' -%}