show pathnames relative to the current directory.

`diff.orderFile`::
	File indicating how to order files within a diff.
ifdef::git-diff[]
	See the `-O` option for details.
endif::git-diff[]
ifndef::git-diff[]
	See the `-O` option to linkgit:git-diff[1] for details.
endif::git-diff[]
	If `diff.orderFile` is a relative pathname, it is treated as
	relative to the top of the working tree.

`diff.renameLimit`::
	The number of files to consider in the exhaustive portion of
	copy/rename detection; equivalent to the `git diff` option
	`-l`.  If not set, the default value is currently 1000.  This
	setting has no effect if rename detection is turned off.

`diff.renames`::
	Whether and how Git detects renames.  If set to `false`,
	rename detection is disabled. If set to `true`, basic rename
	detection is enabled.  If set to `copies` or `copy`, Git will
	detect copies, as well.  Defaults to `true`.  Note that this
	affects only `git diff` Porcelain like linkgit:git-diff[1] and
	linkgit:git-log[1], and not lower level commands such as
	linkgit:git-diff-files[1].

`diff.suppressBlankEmpty`::
	A boolean to inhibit the standard behavior of printing a space
	before each empty output line. Defaults to `false`.

`diff.submodule`::
	Specify the format in which differences in submodules are
	shown.  The `short` format just shows the names of the commits
	at the beginning and end of the range. The `log` format lists
	the commits in the range like linkgit:git-submodule[1] `summary`
	does. The `diff` format shows an inline diff of the changed
	contents of the submodule. Defaults to `short`.

`diff.wordRegex`::
	A POSIX Extended Regular Expression used to determine what is a "word"
	when performing word-by-word difference calculations.  Character
	sequences that match the regular expression are "words", all other
	characters are *ignorable* whitespace.

`diff.<driver>.command`::
	The custom diff driver command.  See linkgit:gitattributes[5]
	for details.

`diff.<driver>.trustExitCode`::
	If this boolean value is set to `true` then the
	`diff.<driver>.command` command is expected to return exit code
	0 if it considers the input files to be equal or 1 if it
	considers them to be different, like `diff`(1).
	If it is set to `false`, which is the default, then the command
	is expected to return exit code 0 regardless of equality.
	Any other exit code causes Git to report a fatal error.

`diff.<driver>.xfuncname`::
	The regular expression that the diff driver should