Tweak finddate to pass date directly.

Previous implementation was passing (date + "to" + date), which fails
when "<" and friends are prepended to the date specifier.

Signed-off-by: Mark Williamson <[e-mail]>

mercurial/cmdutil.py

@@ -902,7 +902,7 b' def show_changeset(ui, repo, opts, buffe'
 
 def finddate(ui, repo, date):
     """Find the tipmost changeset that matches the given date spec"""
-    df = util.matchdate(date + " to " + date)
+    df = util.matchdate(date)
     get = util.cachefunc(lambda r: repo.changectx(r).changeset())
     changeiter, matchfn = walkchangerevs(ui, repo, [], get, {'rev':None})
     results = {}