Fix English

Summary: I usually don't dare to fix English but this one doesn't seem correct even to me.

Test Plan: Read.

Reviewers: epriestley, jungejason

Reviewed By: jungejason

CC: aran

Differential Revision: https://secure.phabricator.com/D2214

Author: vrana

scripts/repository/reparse.php

@@ -233,7 +233,7 @@ function help() {
         --all __repository_phid__
             Reparse all commits in the specified repository. These modes queue
             parsers into the task queue, you must run taskmasters to actually
-            do the parses them.
+            do the parses.
 
     __which_parts__: which parts of the thing to reparse