The code detecting empty patches after removing files with
file_exclude failed for commits which were already empty before (like
the initial commit in some repos): such patches are completely empty
files, without a From line.
Detect that case and just let the normal empty patch detection deal
with it.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
