test-hgweb-auth: alias ui as uimod

tests/test-hgweb-auth.py

@@ -3,7 +3,7 b' from __future__ import absolute_import, '
 from mercurial import demandimport; demandimport.enable()
 import urllib2
 from mercurial import (
-    ui,
+    ui as uimod,
     url,
     util,
 )
@@ -11,7 +11,7 b' from mercurial.error import ('
     Abort,
 )
 
-class myui(ui.ui):
+class myui(uimod.ui):
     def interactive(self):
         return False