git-commit-tree(1): correct description of defaults
git-commit-tree(1): correct description of defaults

The old phrasing indicated that the EMAIL environment variable takes
precedence over the user.email configuration setting, but it is the
other way around.

Signed-off-by: Peter Eisentraut <4b8373d016f277527198385ba72fda0feb5da015@eisentraut.org>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git