hgweb: don't use os.path.join to build URL parts

mercurial/hgweb/hgweb_mod.py

@@ -488,7 +488,7 b' class hgweb(object):'
                     continue
 
                 yield {"parity": parity.next(),
-                       "path": os.path.join(abspath, f),
+                       "path": "%s%s" % (abspath, f),
                        "basename": f[:-1]}
 
         yield self.t("manifest",