Summary:
^\s+(['"])dust\1\s*=>\s*true,?\s*$\n
Test Plan: Looked through the diff.
Reviewers: chad
Reviewed By: chad
CC: aran
Differential Revision: https://secure.phabricator.com/D6769
Summary: I introduced this helper at some point, clean up all the code duplication around content sources.
Test Plan: Grepped; hit edit interfaces for most/all of these.
Reviewers: btrahan, chad, edward
Reviewed By: chad
CC: aran
Differential Revision: https://secure.phabricator.com/D6030