[Pkg-uml-pkgs] Bug#697300: src:user-mode-linux: missing Built-Using on linux (for linux-source-*)

[Ansgar Burchardt]

Package: src:user-mode-linux
Version: 3.2-1um-1
Severity: serious
Justification: Policy 7.8
Usertags: built-using

user-mode-linux uses the Linux kernel source from linux-source-*, but does not
indicate so with a Built-Using field (Policy 7.8). This means the archive might
not contain the full source for this package as the specific version of linux
used to build the package could be replaced with a newer version.

See #696423 for a patch adding the Built-Using field to another package. It
should be easy to apply to user-mode-linux as well.

Ansgar