I can reproduce this too, here is the output from my test system with "docvert-openoffice.org" installed:
dpkg: error processing /var/cache/apt/archives/openoffice.org-emailmerge_1%3a3.1.1-5ubuntu1_all.deb (--unpack):
subprocess new pre-installation script returned error exit status 30
I can reproduce this too, here is the output from my test system with "docvert- openoffice. org" installed:
dpkg: error processing /var/cache/ apt/archives/ openoffice. org-emailmerge_ 1%3a3.1. 1-5ubuntu1_ all.deb (--unpack):
subprocess new pre-installation script returned error exit status 30