Make pink flags pink

Summary:
Indigo apparently used to be pink and was fixed in D10707.

This looks like it never got changed

Test Plan: Flag was purple, then it was pink

Reviewers: chad, #blessed_reviewers

Reviewed By: chad, #blessed_reviewers

Subscribers: epriestley, #flags

Differential Revision: https://secure.phabricator.com/D12101

src/applications/flag/constants/PhabricatorFlagColor.php

@@ -39,7 +39,7 @@ final class PhabricatorFlagColor extends PhabricatorFlagConstants {
       self::COLOR_YELLOW    => 'fa-flag yellow',
       self::COLOR_GREEN     => 'fa-flag green',
       self::COLOR_BLUE      => 'fa-flag blue',
-      self::COLOR_PINK      => 'fa-flag indigo', // whhaaaa
+      self::COLOR_PINK      => 'fa-flag pink',
       self::COLOR_PURPLE    => 'fa-flag violet',
       self::COLOR_CHECKERED => 'fa-flag-checkered',
     );