diff: disable diff.noprefix option for diffstat (
issue5759)
We could use patch.diffhunks() instead of patch.diff() to get filenames
without parsing patch content, but that isn't always possible because we
sometimes feed raw patch data to patch.diffstat().
pager.pager=p0 # $TESTTMP/sysrc:4
ui.editor=e1 # $TESTTMP/userrc:2
pager.pager=p2 # $PAGER
ui.editor=e1 # $TESTTMP/userrc:2