If the user switches from unstable repo to a stable one, it is quite hard to
sync its system with the new repo (the user will see many "Local is newer
than stable" messages, nothing more). That's why I introduced -Suu, which
treats a sync package like an upgrade, iff the package version doesn't match
with the local one's.
I added a new pactest (sync104.py) to test this, and I updated the
documentation of -Su.
Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu>
[Dan: slight doc reword]
Signed-off-by: Dan McGee <dan@archlinux.org>
