* jc/merge:
git-merge knows some strategies want to skip trivial merges
generate-cmdlist: style cleanups.
Add missing semicolon to sed command.
unpack_delta_entry(): reduce memory footprint.
git.el: Added a function to diff against the other heads in a merge.
git.el: Get the default user name and email from the repository config.
git.el: More robust handling of subprocess errors when returning strings.