fix template bug that made hgweb break.

fix template bug that made hgweb break.
problem found by Shun-ichi Goto <[e-mail]>.
this fix tested with command template and hgweb templates.

--- a/mercurial/hgweb.py	Wed Mar 15 11:26:57 2006 +0100
+++ b/mercurial/hgweb.py	Wed Mar 15 11:28:00 2006 -0800
@@ -797,11 +797,11 @@
                              or uri.strip('/') or self.repo.root)
 
         self.t = templater.templater(m, templater.common_filters,
-                                     {"url": url,
-                                      "repo": self.reponame,
-                                      "header": header,
-                                      "footer": footer,
-                                      })
+                                     defaults={"url": url,
+                                               "repo": self.reponame,
+                                               "header": header,
+                                               "footer": footer,
+                                               })
 
         if not req.form.has_key('cmd'):
             req.form['cmd'] = [self.t.cache['default'],]
@@ -1030,7 +1030,8 @@
 
         m = os.path.join(templater.templatepath(), "map")
         tmpl = templater.templater(m, templater.common_filters,
-                                   {"header": header, "footer": footer})
+                                   defaults={"header": header,
+                                             "footer": footer})
 
         def entries(**map):
             parity = 0

--- a/mercurial/templater.py	Wed Mar 15 11:26:57 2006 +0100
+++ b/mercurial/templater.py	Wed Mar 15 11:28:00 2006 -0800
@@ -59,18 +59,17 @@
     filter uses function to transform value. syntax is
     {key|filter1|filter2|...}.'''
 
-    def __init__(self, mapfile, filters={}, cache={}):
+    def __init__(self, mapfile, filters={}, defaults={}, cache={}):
         '''set up template engine.
         mapfile is name of file to read map definitions from.
         filters is dict of functions. each transforms a value into another.
         defaults is dict of default map definitions.'''
         self.mapfile = mapfile or 'template'
-        self.cache = {}
+        self.cache = cache
         self.map = {}
         self.base = (mapfile and os.path.dirname(mapfile)) or ''
         self.filters = filters
-        self.defaults = {}
-        self.cache = cache
+        self.defaults = defaults
 
         if not mapfile:
             return