tests/test-merge-remove.out

patch/diff: use a separate function to write the first line of a file diff

created new head
merging foo1 and foo to foo1
1 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
n   0         -2 bar
m 644         14 foo1
copy: foo -> foo1
M bar
M foo1
% removing foo1 and bar
r   0         -2 bar
r   0         -1 foo1
copy: foo -> foo1
R bar
R foo1
% readding foo1 and bar
adding bar
adding foo1
n   0         -2 bar
m 644         14 foo1
copy: foo -> foo1
M bar
M foo1
  foo
% reverting foo1 and bar
saving current version of bar as bar.orig
reverting bar
saving current version of foo1 as foo1.orig
reverting foo1
n   0         -2 bar
m 644         14 foo1
copy: foo -> foo1
M bar
M foo1
  foo