Comment 2 for bug 1471903

This also has the effect of identifying packages in Dependencies (in an apport report) as being from an unknown origin, even though they are from the Ubuntu archive. Here's a portion of Dependencies from a crash report from Ubuntu 15.04:

libcryptsetup4 2:1.6.1-1ubuntu7
libcups2 2.0.2-1ubuntu3.1 [origin: unknown]
libcurl3 7.38.0-3ubuntu2.2 [origin: unknown]
libcurl3-gnutls 7.38.0-3ubuntu2.2 [origin: unknown]
libdatrie1 0.2.8-1
libdb5.3 5.3.28-9

Example crash:

https://errors.ubuntu.com/oops/9b051a18-23cd-11e5-a99b-fa163e75317b