Add a space between the committer name and email, and remove
superfluous spaces in the date header.
This makes cgit-generated patches match the output from git-format-patch
almost exactly, at least as far as the email headers go.
Signed-off-by: Tomas Carnecky <tom@dbservice.com>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>