git: regress

ref: 717df14acac498bfb4496066a60c1ae83e93d9b7
dir: /cmd/patch/

basic.expected
basic.in
basic.patch
create.expected
create.patch
delete.expected
delete.patch
header.expected
header.in
header.patch
mkfile
multifile.patch
multifile1.expected
multifile1.in
multifile2.expected
multifile2.in
nop.expected
patch.rc