ERROR: Non-existent flag --version

USAGE: mftraining [.tr files ...] --debug_level Level of Trainer debugging (type:int default:0) --load_images Load images with tr files (type:int default:0) --clusterconfig_min_samples_fraction Min number of samples per proto as % of total (type:double default:0.625) --clusterconfig_max_illegal Max percentage of samples in a cluster which have more than 1 feature in that cluster (type:double default:0.05) --clusterconfig_independence Desired independence between dimensions (type:double default:1) --clusterconfig_confidence Desired confidence in prototypes created (type:double default:1e-06) --configfile File to load more configs from (type:string default:) --D Directory to write output files to (type:string default:) --F File listing font properties (type:string default:font_properties) --X File listing font xheights (type:string default:) --U File to load unicharset from (type:string default:unicharset) --O File to write unicharset to (type:string default:) --T File to load trainer from (type:string default:) --output_trainer File to write trainer to (type:string default:) --test_ch UTF8 test character string (type:string default:)