Can be overridden by the 'GIT_AUTHOR_NAME' and 'GIT_COMMITTER_NAME'
environment variables. See gitlink:git-commit-tree[1].
+user.signingkey::
+ If gitlink:git-tag[1] is not selecting the key you want it to
+ automatically when creating a signed tag, you can override the
+ default selection with this variable. This option is passed
+ unchanged to gpg's --local-user parameter, so you may specify a key
+ using any method that gpg supports.
+
whatchanged.difftree::
The default gitlink:git-diff-tree[1] arguments to be used
for gitlink:git-whatchanged[1].