Convert phutil_render_tag(X, Y) to phutil_tag

Summary:
Created with spatch:

  lang=diff
  - phutil_render_tag
  + phutil_tag
    (X, Y)

(and null manually)

Test Plan: Loaded homepage

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4500

src/view/form/control/AphrontFormFileControl.php

@@ -7,7 +7,7 @@ final class AphrontFormFileControl extends AphrontFormControl {
   }
 
   protected function renderInput() {
-    return phutil_render_tag(
+    return phutil_tag(
       'input',
       array(
         'type'      => 'file',