--pretty[='<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'.

--encoding[=<encoding>]::
	The commit objects record the encoding used for the log message
	in their encoding header; this option can be used to tell the
	command to re-code the commit log message in the encoding
	preferred by the user.  For non plumbing commands this
	defaults to UTF-8.

--pretty[='<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'.

--abbrev-commit::
	Instead of showing the full 40-byte hexadecimal commit object
	name, show only handful hexdigits prefix.  Non default number of
	digits can be specified with "--abbrev=<n>" (which also modifies
	diff output, if it is displayed).
+
This should make "--pretty=oneline" a whole lot more readable for
people using 80-column terminals.

--encoding[=<encoding>]::
	The commit objects record the encoding used for the log message
	in their encoding header; this option can be used to tell the
	command to re-code the commit log message in the encoding
	preferred by the user.  For non plumbing commands this
	defaults to UTF-8.

Document git log --abbrev-commit, as a kind of pretty option
Document git log --abbrev-commit, as a kind of pretty option

Documentation taken from paraphrased description of "--abbrev[=<n>]"
diff option, and from description of commit 5c51c985 introducing
this option.

Note that to change number of digits one must use "--abbrev=<n>",
which affects [also] diff output.

Signed-off-by: Jakub Narebski <a6a1517a087f9f64a72f41a0de57ff01fbb0e412@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>
