tests/test-extra-filelog-entry.t

web: prevent TypeError thrown when using the diffstat templates

Remove the lambda used to wrap webutil.diffstat because:
- functions passed to the templater must accept keyword arguments
- webutil.diffstat is a generator, so already calculates the diffstat lazily

This reverts the changes made to 1d3e2349304a after it was submitted to the
mailing list but before it was queued.

Issue351: mq: qrefresh can create extra revlog entry

  $ echo "[extensions]" >> $HGRCPATH
  $ echo "mq=" >> $HGRCPATH

  $ hg init
  $ hg qinit

  $ echo b > b
  $ hg ci -A -m foo
  adding b

  $ echo cc > b
  $ hg qnew -f foo.diff
  $ echo b > b
  $ hg qrefresh

  $ hg debugindex b
     rev    offset  length   base linkrev nodeid       p1           p2
       0         0       3      0       0 1e88685f5dde 000000000000 000000000000