puppetlabs/puppetlabs-lvm — pull request #28 by raskas (2013-03-12 12:23:50+00:00)
Title: Feature/14718: size 'undef' doesn't work when creating a new logical volume

Code as provided by Sander Hollaar in http://projects.puppetlabs.com/issues/14718
Problem is also described in http://projects.puppetlabs.com/issues/17920