bench 1.1.0

Run a program, measure execution time and print statistics. 
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name: 'bench'
author: 'Alexander Thaller <alexander@thaller.ws>'
about: 'Run a program, measure execution time and print statistics.'
global_settings:
  - 'ColoredHelp'
  - 'GlobalVersion'
  - 'NextLineHelp'
  - 'TrailingVarArg'
args:
    - log_level:
        help: "loglevel to run under"
        short: "l"
        long: "loglevel"
        takes_value: true
        value_name: "level"
        possible_values: [ "trace", "debug", "info", "warn", "error" ]
        default_value: "info"
    - sample_size:
        default_value: '100'
        help: 'how many samples to take'
        short: 's'
        long: 'sample_size'
        takes_value: true
        value_name: 'count'
    - id:
        help: 'id to save benchmark under. defaults to command value'
        short: 'd'
        long: 'id'
        takes_value: true
        value_name: 'id'
    - command:
        required: true
        multiple: true
        use_delimiter: false