Remove skipping over empty patches (i.e. patches which consist solely
of extended headers) in git_patchset_body, and add links to those
header-only patches in git_difftree_body (but not generate blobdiff
links when there were no change in file contents).
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>