--pretty[='<format>']::
- Pretty print the contents of the commit logs in a given format,
+ Pretty-print the contents of the commit logs in a given format,
where '<format>' can be one of 'oneline', 'short', 'medium',
'full', 'fuller', 'email', 'raw' and 'format:<string>'.
- When left out the format default to 'medium'.
+ When omitted, the format defaults to 'medium'.
--abbrev-commit::
Instead of showing the full 40-byte hexadecimal commit object