···161161and `--no-color`.
162162163163164164+Options trump configuration and environment
165165+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
166166+167167+When there is a configuration variable or an environment variable
168168+that tweak the behaviour of an aspect of a Git command, and also a
169169+command line option that tweaks the same, the command line option
170170+overrides what the configuration and/or environment variable say.
171171+172172+For example, the `user.name` configuration variable is used to
173173+specify the human-readable name used by the `git commit` command to
174174+record the author and the committer name in a newly created commit.
175175+The `GIT_AUTHOR_NAME` environment variable, if set, takes precedence
176176+when deciding what author name to record. The `--author=<author>`
177177+command line option of the `git commit` command, when given, takes
178178+precedence over these two sources of information.
179179+180180+164181Aggregating short options
165182~~~~~~~~~~~~~~~~~~~~~~~~~
166183Commands that support the enhanced option parser allow you to aggregate short