Fix a bad link target in Diffusion content search results

Summary: See <https://discourse.phabricator-community.org/t/broken-links-in-diffusion-pattern-search-results-page/757>. This links to the display path, which is incorrect.

Test Plan:
  - In any repository, browsed into a directory.
  - Used pattern search to search for something that hits results.
  - Clicked the title (filename/path) of a result table.
    - Before patch: URL omits path context, 404 or wrong result.
    - After patch: taken to proper page.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D18779

src/applications/diffusion/view/DiffusionPatternSearchView.php

@@ -96,10 +96,11 @@ final class DiffusionPatternSearchView extends DiffusionView {
 
     $path_title = Filesystem::readablePath($this->path, $drequest->getPath());
 
-    $href = $drequest->generateURI(array(
-      'action' => 'browse',
-      'path' => $path_title,
-    ));
+    $href = $drequest->generateURI(
+      array(
+        'action' => 'browse',
+        'path' => $this->path,
+      ));
 
     $title = phutil_tag('a', array('href' => $href), $path_title);