Issue #1984378 by Jaypan, JacobSanford, aroq | Dave Hirschman:  argument is name of form field used to upload file, not 'filepath or URI of the uploaded file.'
Merge pull request #420 from hellomrcat/d7-source

Issue #1984378 by Jaypan, JacobSanford, aroq | Dave Hirschman:  argument is name of form field used to upload file, not 'filepath or URI of the uploaded file.'