[opw-web] Improve program dates in contract filenames

[Owen Taylor <otaylor src gnome org>]

commit a108a4e865c00740fb760b0a838dd3b1d4b6e1f2
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Tue Dec 15 14:12:19 2015 -0500

    Improve program dates in contract filenames
    
    * Use zero-padded dates for the program date
    * Use the selection deadline instead of application-start date
      for the program date.

 modules/mod_contract.php |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/modules/mod_contract.php b/modules/mod_contract.php
index 8baa57c..8952366 100644
--- a/modules/mod_contract.php
+++ b/modules/mod_contract.php
@@ -180,7 +180,7 @@ if ($action == 'edit_student' || $action == 'edit_mentor') {
         $file_name .= '_';
         $file_name .= preg_replace('/[^a-zA-Z]+/', '-', $row['contract_entered_name']);
         $file_name .= '_Outreachy-';
-        $file_name .= date('Y-n', $program_data['start_time']);
+        $file_name .= date('Y-m', $program_data['dl_mentor']);
         $file_name .= '-';
         $file_name .= strtolower($role_string);
         $file_name .= '-agreement.pdf';