fix(admin-tool): getting PHP notices when exporting donor

[raftaar1191]

User Story

As an Admin when exporting donor I do not expect any PHP notices

Current Behavior

I currently getting PHP notices

Expected Behavior

I expect no PHP notices

Steps to Reproduce

1. Set up the sites with Give Core 2.1.3 and add some donor to it
2. Now browse to Donations > Tools > Export Make sure to enable debug log
3. You will see notices coming up

Visuals

Adding Video: https://screencast-o-matic.com/watch/cFh2ibb46R

Debug Log

[14-May-2018 06:54:59 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:54:59 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:54:59 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:54:59 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:54:59 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:54:59 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:55:00 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:55:00 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:55:00 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:55:00 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:55:00 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:55:00 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 33 [14-May-2018 06:56:13 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /app/public/wp-includes/option.php:37) in /app/public/wp-admin/includes/misc.php on line 1116 [14-May-2018 06:57:17 UTC] PHP Warning: trim() expects parameter 1 to be string, object given in /app/public/wp-includes/option.php on line 40

[ravinderk]

Closing this issue in favor of bfa4609...5c33680