Followup to r1439, with the correct logic in generate_page().

* lib/viewvc.py
  (generate_page): Reverse the logic in the if/else to be correct.


git-svn-id: http://viewvc.tigris.org/svn/viewvc/trunk@1473 8cb11bc2-c004-0410-86c3-e597b4017df7

lib/viewvc.py

@@ -833,9 +833,9 @@ def get_view_template(cfg, view_name, language="en"):
 
 def generate_page(request, view_name, data, content_type=None):
   if content_type:
-    request.server.header()
-  else:
     request.server.header(content_type)
+  else:
+    request.server.header()
   template = get_view_template(request.cfg, view_name, request.language)
   template.generate(request.server.file(), data)