record: don't honor format-changing diffopts (issue4459)

record does support the whitespace options, so honor those. In upcoming patches
we'll replace all the other uses.

hgext/record.py

@@ -519,10 +519,9 b' def dorecord(ui, repo, commitfunc, cmdsu'
                                '(use "hg commit" instead)'))
 
         status = repo.status(match=match)
-        diffopts = opts.copy()
-        diffopts['nodates'] = True
-        diffopts['git'] = True
-        diffopts = patch.diffopts(ui, opts=diffopts)
+        diffopts = patch.difffeatureopts(ui, opts=opts, whitespace=True)
+        diffopts.nodates = True
+        diffopts.git = True
         chunks = patch.diff(repo, changes=status, opts=diffopts)
         fp = cStringIO.StringIO()
         fp.write(''.join(chunks))

tests/test-record.t

@@ -559,9 +559,9 b' Add to beginning, middle, end'
   >   echo $i >> plain
   > done
 
-Record beginning, middle
+Record beginning, middle, and test that format-breaking diffopts are ignored
 
-  $ hg record -d '14 0' -m middle-only plain <<EOF
+  $ hg record --config diff.noprefix=True -d '14 0' -m middle-only plain <<EOF
   > y
   > y
   > y