[Domain Mapping] DM: incorrect path to wp-config shown in sunrise notification

Issue: incorrect path to wp-config shown in sunrise notification

to replicate:

1) place wp-config.php and index.php in webroot directory, /

2) place WP files in a subdirectory of webroot, /wp

3) per codex, edit /wp-config.php ABSPATH to '/wp/' [and index.php /wp/wp-blog-header.php]

4) setup network

5) do NOT add sunrise define, do NOT copy sunrise file

6) network activate Domain Mapping plugin, navigate to …/wp-admin/network/settings.php?page=domainmapping_options

7) observer notification with incorrect path:

"In your /home/username/public_html/wp/wp-config.php file please uncomment or add (if not available) the following code:"

[this is third try to submit this ticket, this time with no code… if this works I'll add a comment with further details ~max]