Update to 1.16.1

Changelog:

• 1.16.1
  • Fix line-wrapping of --help text
  • Fix --input=null

• 1.16.0:
  • Added new --input option
  • Added possibility to specify - as the filename in the --export-* options
  • Improve hints for outlier warnings if --warmup or --prepare are in use already

Ran hyperfine --min-runs 5 'sleep 0.2' and got the benchmark result successfully.